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Jurong Aromatics Complex Project J E S - 4 7 ~ 1

Engineering Standard

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BUILDINGS

BUILDINGS

Doc. No. JES-47A1)

Contract No.

JAC0701

Project Title Jurong Aromatics Complex Project

Project Location Jurong Island, in Singapore

OWNER S Name Jurong Aromatics Corporation Pte Ltd.

C 29 Dec 2010 Revised as Marked SJH WSH SHK

0

A 31 Jan 2008 Issue for Comm ents SJH GDY SYH

02 May 201 1

Jurong Aromatics Corporation Pte Ltd

Issued for Construction SJ

29 Feb 2008

Rev

Revised as Marked

Date

SJH

Description

GDY

Prp d

SY H

Chk d Rev d

Owner


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Jurong Aromatics Corporation Pte Ltd.

TABLE OF CONTENTS

1. GENERAL

2. BUILDING DESIGN

3. MAIN CONTROL BUILDING

4. SUBSTATION

5. CANTEEN BUILDING

6. MAINTENANCE WORKSHOP AND WAREHOUSE

7. GATE HOUSE

8. FIELD OPERATOR HOUSE

9. LABORATORY BUILDING

10. COMPRESSOR SHELTER

11. CAR PARKING

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1. GENERAL

1.1 Scope

This Engineering Standard describes the minimum requirements for the architectural, civil,

structural and mechanical work in the design and construction of the various buildings including

the following:

Main Control Building

Substation

Canteen Building

Maintenance WorkshopWarehouse

Gate House

Field Operator House

Laboratory Building

Compressor Shelter

Car parking

1.2 References

Refer to Engineering Standard JES-40A2 : General Civil Design Criteria for a listing of Codes,

Regulations, Design Standards and general criteria applicable to this Standard. Reference

should also be made to the following documentation:

1.2.1 Reference Codes

CP 56 (1991) : Code of Practice for internal plastering

CP 82 (1999) : Code of Practice for Waterproofing of reinforced concrete Buildings

CP 90 (2001) : Code of Practice for design and installation of partition walls

CP 05 (1998) : Code of Practice for Wiring of Electrical Equipment of Buildings

CP 10 (2005) : Code of Practice for the Installation and Servicing of Electrical Fire

Alarm SystemCP 13 (1999) : Code of Practice for Mechanical Ventilation and Air-conditioning in

Buildings

1.2.2 Engineering Standard Numbers :

JES-41A5 : Drainage

JES-41A6 : Roads and Paving

JES-43A1 : Concrete Structures and Foundations

JES-46A1 : Structural Steelwork Design

1.2.3 Geotechnical Report

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1.3 Design Loadings

Loads and forces to be used in the design shall be in accordance with Engineering Standard

JES-40A2 : General Civil Design Criteria and ANSI A58.1.

2. BUILDING DESIGN

2.1 General Requirements

- MAIN CONTRACTOR shall include design and construction of buildings in section 1.1together with all the necessary services, facilities, system works and drainage from there,

in his scope of work. The design shall be subject to the APPROVAL of OWNER.

- The sizes of the buildings and shelters shall be based on the equipment to be served,

material stored, and personnel access and space requirements.

- All buildings, to which personnel are regularly assigned shall have lavatory facilities.

2.2 Aesthetic Design Considerations

The aesthetic appearance of all buildings shall be carefully considered and developed to be

complimentary to nearby Buildings. Particular areas for further consideration shall consist of, but

not be limited to, the following:

- Commonality of masonry finishes where appropriate.

- Commonality of colors.

- Continuation of the feature bands in the masonry cladding particularly at wall parapet

coping and above/below windows.

- Commonality of door finishes/styles as appropriate.

- Commonality of external glazing types as appropriate.

- The use of dark colored base plinths for buildings where the ground floor is raised above

grade level.

- The use of complimentary metal wall cladding design, color and trims/flashings.- External building signs and OWNERs Logo shall be made of enameled aluminum. MAIN

CONTRACTOR shall submit details of all signs including location, size, letter style, text

mounting method to OWNER for approval.

- All internal rooms shall be identified by means of signs made of rigid colored plastic

sheet with a clear plastic laminated cover. MAIN CONTRACTOR shall submit a schedule

of all signs including location, size, letter style, text mounting method to OWNER for

approval.

2.3 Blast Resistant Design

Blast Resistant Design shall be applied for Main Control Building and Substations as follows:


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2.3.1 Applicable Codes and Standards

Blast resistant design shall be in accordance with Design of Blast Resistant Buildings in

Petrochemical Facilities, ASCE, and standards, specifications and publications referred therein

shall be construed as applicable codes and standard for blast resistant design.

2.3.2 Blast Pressure and Duration

Blast pressure and duration are under the influence of various factors such as explosion types,

building sizes, distances between a structure and a potential source and so on. Blast resistant

buildings should be designed based on blast pressure and duration predicted by Quantitative

Risk Assessment (QRA).If these are not available, the basis for blast load may be developedfrom the references, SG-22 and CIA 1992. According to both documents, blast overpressures for

buildings spaced 30 meters from vapor cloud explosion hazard is specified as commonly used

criteria as follows:

- Side-on overpressure : 3 psi (21 kPa)

- Duration : 100 milliseconds

These blast loading have been widely used in the past for blast resistant design throughout the

industry, so it will be applied to the blast resistant buildings of JAC Project.

2.3.3 Resistance Analysis Methods

MAIN CONTRACTOR shall use dynamic analysis methods appropriate for specific blast design.

The selected methods shall adequately model the dynamic response of structure to the applied

blast loads and the structural component interaction.

For the Project, the equivalent static design method, which is one of analysis methods provided

in Chapter 6 of the ASCE Report, will be used with blast loads.

a) Equivalent Static Loads

Equivalent static loads may be used to represent the dynamic effects of the blast loading

on each structural component. The equivalent static loads shall be dynamic resistance (R)required for components to withstand the specified blast loading without exceeding the

deformation limits specified in specification.

b) Dynamic resistance

Required dynamic resistance (R) in the direction of blast loads shall be calculated as

followings in accordance with the procedure outlined in ASCE Manual 42.

( )

+

+

=

7.02

m

PR

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2.4 Foundations and Concrete Work

Design shall be in accordance with Engineering Standard JES-43A1 : Concrete Structures and

Foundations

2.5 Steel Framed Building and Masonry Building

2.5.1 Steel framed buildings

Steelwork framed structures shall be designed in accordance with Engineering Standard JES-

46A1 : Structural Steelwork Design. Roof and wall cladding shall generally be coated profiledinsulated metal sheet or single sheet. Drainage shall be through one or more roof drains leading

into stainless steel pipe downspouts or through leaders and gutters. Insulation shall be provided

as required to suit building use and local climatic data.

2.5.2 Masonry buildings

Masonry buildings shall be one of the two following types:

a) Load bearing exterior masonry walls. Joists and flat metal roof deck supported by exterior

walls and interior columns as required.

b) Non-load bearing exterior masonry walls. Joists and flat metal roof deck supported by

steel column and beam frame system.

Lateral bracing shall be accomplished by means of one of the two following

systems:

a) Exterior masonry walls parallel to wind direction to act as shear walls resisting total

horizontal force of wind. Roof deck to act as a diaphragm transmitting horizontal force of

wind to shear walls.

b) Where a steel column and beam frame system is employed for support of roof deck,

braced frames or rigid frames may be utilized to resist total horizontal wind force.

Design of concrete masonry walls shall be in accordance with BS 5628 and shall resist

lateral forces from wind loading as detailed in Engineering Standard JES-40A2 : General

Civil Design Criteria.

Exterior concrete masonry walls shall not be less than 200mm thick and shall be

constructed with common bond or equal approved.

2.6 Openings

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2.6.1 Doors

In general, 900mm 2100mm single doors shall be used, with larger doors as required for

moving large equipment into or out of the building.

Internal doors shall be hollow metal or pressed tube industrial doors, timber door plywood faced

(internal only) or anodized aluminum framed glass doors. Hinged doors shall swing out.

External doors of all buildings shall be galvanized steel door with frames. These doors shall

swing out and shall be provided with door closers. Personnel doors shall be equipped with quick

opening panic bar hardware equipment in the building, unless other means are provided or

agreed upon by OWNER and MAIN CONTRACTOR. All ironmongery for the buildings shall be

stainless steel to the OWNER approval.

2.6.2 Windows

Windows shall be epoxy powder coated aluminum framed, color may be black. In walls of

pressurized rooms, fixed sash shall be used. In other walls, sliding and/or projected sash shall

be used

Where windows are permitted and used in process or hazardous areas they shall be fixed steel

commercial frames with wire reinforced clear glass.

2.6.3 Glazing

Unless specified otherwise:

a) All exterior window glass shall be high reflective glass 5mm thick unless otherwise noted.

b) All exterior doors except for blast resistance doors shall be glazed with heat absorbing

float glass 5mm thick.

2.7 Plumbing

Plumbing systems shall be furnished and installed complete where required, including all

fixtures, waste, drain and vent lines. Cold/hot water service shall be provided to each appliance

with the distribution piping work. See Table below for sanitary fixture requirements (for each sex).

TABLE OF SANITARY FIXTURES

Number of Number of Fixtures

Persons Water Closet Urinal Lavatory*

1-10 1 1 1

11-20 2 1 2

21-50 2 2 3-5

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(*) 1 Lavatory required for each 10 persons.

Note: Hot automatic air blower for hand drying shall be provided for every toilet.

2.8 Heating, Ventilating and Air Conditioning

2.8.1 General

a) Heating, ventilating and air conditioning systems shall be designed in accordance with

the American Society of Heating, Refrigerating and Air Conditioning Engineers Standards

(ASHRAE), and shall comply with all local laws and codes governing such installations.R134a shall be used and other refrigerant may be used, subject to agreement with

OWNER.

b) The following room temperatures shall be maintainable:

Area Summer Winter

i. Control Rooms 20-25C/5015RH 20-25C/50%15RH

ii. Office Areas 20-25C 20-25C

iii. MCC/Switchgear Max. 30C Min. 5C

c) Ventilating equipment shall be sized to maintain the requirements of ASHRAE Standard

62-1, Ventilation for Acceptable Indoor Air Quality, where applicable and according to the

following minimum outside air requirements for ventilation:

i. Mechanically ventilated switch rooms and locker rooms: 10 air changes/hour

ii. Toilets : 1.4m3/hr per water closet or urinal.

iii. Compressor, pump, and blower rooms: 10 air changes/hour

2.8.2 Control Rooms

a) A central air conditioning system with air cooled condensing unit shall maintain the

specified indoor design conditions and shall be pressurized to 2.5-mm WG.

b) The system shall be completed with ducted supply, return, exhaust and automatic control

system.

2.8.3 Offices, Lockers and Toilets

a) Office rooms, meeting rooms and the others shall be air conditioned by means of split

unit type air conditioner or multi zone type air conditioner with direct expansion cooling

unit. The indoor unit shall be either of the following type as required in the detail design.

- Ceiling mounted cassette type fan coil unit or floor/wall mounted type fan coil unit.

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b) All condensing units shall be installed on top of the roof. The building design shall provide

accessibility for carrying out routine maintenance.

c) Ventilation of toilets and lockers shall be by motor driven, exhaust fans. Make-up air shall

be thru louvered or undercut doors.

2.8.4 MCC and Switchgear Rooms

a) The switchgear rooms in substations shall be air-conditioned to maintain the specified

indoor design conditions.

b) Switchgear rooms located in hazardous areas and housing general purpose non-

explosion-proof switchgear and equipment shall be ventilated by means of fans of non-

overloading type designated to maintain a positive pressure air system in accordance

with NFPA 496 and shall be pressurized to 2.5-mm WG. Relief to atmosphere shall be

through an adjustable relief damper and by leakage.

c) Ventilation of switchgear rooms located in non-hazardous areas shall be by wall or roof

mounted exhaust air fans and weatherproof louvers.

2.8.5 Maintenance Workshops, Pump Shelters, Compressor Shelters

Ventilation of hot and cold oil, pump, compressor, and blower rooms shall be provided by

exhaust fans located high in the exterior walls or roof. Outside air supply shall be through

louvers with a horizontal throw located low in exterior walls.

3. MAIN CONTROL BUILDING

3.1 General Description

The Main Control Building (MCB) shall be a two story blast resistant building, generally consistof an in-situ reinforced concrete structure that comprises; foundations, supporting frame, floor or

roof slabs and beams.

The 1st floor level shall be raised 300mm above the finish grade level.

Thermal insulation shall be provided to all surfaces of the external envelope to ensure that the

following minimum U values are maintained.

Walls 0.60W/m2C

Roofs 0.45W/m2C

A small section of the roof structure shall be extended to provide and enclosed reinforced

concrete chamber of maximum height 1.8m, complete with blast/suction proof valves, exhaust

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air louvers and a fresh air intake stack with chemical filter inside. The entire installation shall besized to suit the requirements of the HVAC design.

Each working floor area shall be divided or fire compartmented by full height walls to provide the

following areas:-

- Control Room

- Engg Station Room

- Office

- Meeting Room

- Technology Manager Room

- Senior Operation Manager Room- Shift Foreman Room

- Division Leader Room

- Doc. Room

- Toilet

- Locker Room

- Shower Room

- Cleaner Room

- Dining Room & Operators Lounge

- Pantry

- Store

- Fax/Copy

- Server Room

- AC Plant Room

- Inst. Aux. Room

- Electrical Room

- Battery Room

- UPS Room

- Gas Extinguishing System Cylinder Room

- Telecommunication Room

Access flooring systems that form cabling voids between the flooring panels and the supporting

RC slabs shall be provided to rooms in accordance with Section 3.2.11

3.2 Building Components

3.2.1 External Walls

The external wall of buildings shall be in-situ reinforced concrete designed to withstand pressure

as specified in clause 2.3. The outer faces shall be painted on fair faced smooth concrete and

the inner faces shall be lined with dense concrete block walls or vapor sealed insulated gypsum

wall boards secured to screw and plug fixed battening at 600mm centers.

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3.2.2 Internal Walls

The dense concrete block work or lightweight partitioning to a nominal thickness of 100mm from

a steel stud and plaster board system, comprises of two 12.0mm gypsum wall boards secured

to each face of boxed galvanized metal studs, fixed at 600mm centers and mounted on a sole

plate.

3.2.3 Internal Windows

Glazed openings provided in the Control Room walls shall be from stainless steel sections,

screw and plug fixed into the opening reveals.

The frames shall be glazed in 3mm clear glass using stain-free, non-setting putty, except that

transparent, laminated Georgian polished wire glass with fire-resisting properties shall be used

for the internal windows between the control room and the operators room. These glass panes

shall be fixed with screwed metal bolts.

3.2.4 External Windows

External widows shall not be permitted for blast resistance designed buildings unless required

by special purpose.

3.2.5 External Doors

All external doors shall be 2-hour fire rated designed to resist an explosion pressure.

Doors and frames shall be designed for the same forces as applied normally to the walls in

which the doors are mounted in accordance with Section 2.3

Construction shall be from flush finished painted galvanized steel sheet, secured to a fabricated

steel section framework, provided with an insulating core from non-combustible materials to

satisfy the requirements of the standard NFPA fire test.

All doors are to be hung in profiled galvanized steel frames, securely fixed into formed rebatedopenings in the reinforced concrete walls. Each door leaf shall be provided with frame mounted

air sealer stripping to maintain an air tight seal.

Double leaf equipment access doors shall be provided with a vertical removable steel bearer,

mounted at the meeting stiles to provide additional support against the design overpressure,

this bearer shall be capable of transmitting the overpressure, this bearer shall be capable of

transmitting the overpressure design forces, from the door into the reinforced concrete wall

structure. One leaf may also be used as a personnel door but the other leaf and over panel

when not in use shall be bolted to the frame.

All doors are to be single swing opening outwards to the following sizes including frames:-

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- Personnel 0.9m x 2.1m- First Aid Access 1.5m x 2.1m

- Equipment Access 1.8m x 2.1m*

Note:

The opening height for doors marked thus * are to be a minimum of 2.7m. Frames are to be

provided with a removable transom that will enable fixing in of an over door panel. This panel

shall be constructed from materials consistent with those of the door and shall be designed to

withstand the same design pressures.

3.2.6 Internal Doors

All internal doors shall be capable of maintaining the fire integrity of the wall or partition into

which they are to be mounted with a minimum fire rating of hour, with the exception of the

toilet cubicle doors, where no fire rating is necessary. Doors shall generally be of timber

construction, flush pattern, solid cored, finished in wood veneer facings and provided with

hardwood lapping. All doors shall be hung in profiled galvanized pressed steel frames, securely

fixed back to walls or the building fabric.

Each door enclosing an air conditioned space or opening onto a corridor shall be provided with

frame mounted air sealer strips, interconnecting doors between similar areas need not be air

sealed. All doors are to be single swing, where possible opening in the direction of egress from

the building, to the following basic size, 0.9m x 2.1m high.

Doors specifically for equipment access shall be constructed from similar materials as for other

internal doors and provide a minimum opening size of 1.8m x 2.1m* (Refer to note* clause

3.2.5).

3.2.7 Floors

All areas shall be in-situ reinforced concrete slabs, finished in accordance with clause 3.2.12

and supported directly over RC walls or by RC beams spanning the walls.

Where cable voids are required to suit electrical or instrument equipment, areas are to be

provided with a full access raised modular flooring system, comprising 600mm square panels

set to line and level on adjustable pedestals placed to suit the 600mm modular grid.

3.2.8 Roof

Roof construction shall be from an in-situ reinforced concrete slab supported by RC beams

spanning the load bearing RC walls.

The top surface of the slabs shall be formed to falls and finished with a constant thickness finish

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- Lightweight Foam Concrete

The lightweight concrete screed shall comprise Type I or Type II cement to ASTM C 150,

foaming emulsion and water. Installed dry density shall be approximately 550 kg/m3, or

recommended by the roofing system VENDOR

- Sand/Cement Screed

20mm sand/cement screed applied under the waterproofing membrane.

- Water Proof Membrane

MAIN CONTRACTOR shall submit the product data sheet of the roof waterproofing

membrane for OWNER approval

- Rigid Insulation

The insulation shall be minimum thickness approx. 50mm rigid rockwool panels, as

recommended by roofing system VENDOR.

- Slip Membrane

A slip membrane will allow the screed to thermally move on the rigid insulation below and

will allow the rainwater to pass the waterproofing membrane below

- Screed Concrete

40mm concrete screed placed on the slip membrane shall be permanently protecting the

insulation layer.

- Urethan Waterproofing

The water-proofing shall be suitably raised upon the internal face of parapet walls.

3.2.9 Drainage and Sewerage

Roof rainwater shall be directly trapped through parapet walls by external stainless steel hopper

heads and drained out by stainless steel pipes to the storm water drainage system. Stainless

steel down pipes shall be suitably fixed to building fronts.

3.2.10 Suspended Ceilings

All areas occupied by personnel to be provided with acoustic patterned or smooth mineral fiber

tile. Toilet area to be provided with washable, moisture proof mineral fiber tiles. All ceiling tiles

shall be laid on exposed grid type suspension system.

3.2.11 Sanitary Ware

All fittings shall be from white glazed vitreous china , fired clay or stainless steel supplied as

matching suites from a single manufacturer.

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W.C.s shall be from vitreous china complete with a low level flushing cistern and connectingfitments including P trap.

Wash hand basins shall be in vitreous china complete with chromium plated pillar taps, trapped

waste pipe connection and wall mounting brackets, approx. size 0.55 x 0.4m.

Urinals shall be the wall hung vitreous china with flushing rim type, complete with trapped outlet

and common manual operation type.

Cleaner room sinks shall be in fired clayware, cleaners sink pattern, approx. size 0.61 x 0.30 x

0.23 deep, complete with wall mounted chromium plated bib taps, hinged bucket grating,

hardwood pad and floor support legs in stainless steel.

3.2.12 Finishes

In general the internal finishes shall be as follows:-

Office F1 W1 C1

Meeting Room F1 W1 C1

Technology Manager Room F1 W1 C1

Senior Operation Manager Room F1 W1 C1

Division Leader Room F1 W1 C1

Corridor F1 W1 C1Doc. Room F1 W1 C1

Dining Room & Operators Lounge F1 W1 C1

Fax/Copy F1 W1 C1

Pantry F1 W1 C1

Store F3 (a) W1 C3

Shift Foreman Room F1 W1 C1

Control Room F2/F3 (a) W1 C1

Engg Station Room F2/F3 (a) W1 C1

Server Room F2/F3 (a) W1 C1

Inst. Aux. Room F2/F3 (a) W1 C3

Telecommunication Room F2/F3 (a) W1 C3

Electrical Room F3 (a) W1 C3

Battery Room F3 (a) W1 C3

UPS Room F3 (a) W1 C3

AC Plant Room F3 (a) W1 C3

Gas Extinguishing System Cylinder Room F3 (a) W1 C3

Toilet F6 (b) W4 C2

Locker Room F1 W1 C1

Shower Room F6 (b) W4 C2

Cleaner Room F6 (b) W4 C2

Stairs and Landing F1 W1 C1 or C3 (See Note 1)

NOTE 1:- With non slip nosing.

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FLOORS

F1 - Vinyl tiles on screed

F2 - Vinyl tiles on access flooring

F3(a) - Epoxy paint coating on concrete steel trowel finish

F3 (b) - Epoxy paint coating on concrete hardener

F4 - 500mm x 500mm carpet tiles on screed

F5 - Marble tiles on sand/cement bed

F6 (a) - 300mm x 300mm Non-slip ceramic tiles on sand/cement bed

F6 (b) - 200mm x 200mm Non-slip ceramic tiles on sand/cement bed

NOTE 2

The junction of walls and floors is to be finished by a 100mm minimum height Vinyl skirting

carried out in materials consistent with the surrounding floor finish. Where ceramic tiles are

specified, coved ceramic base shall be used except for the toilets where ceramic tiles shall be

used.

NOTE 3

Any un-finished concrete surfaces under access flooring shall be sealed by the application of

an epoxy based dust proofing paint.

WALLS

W1 - Acrylic emulsion paint on cement plaster

W2 - Acrylic emulsion paint on fair faced concrete

W3 - Epoxy paint on cement plaster

W4 - Glazed ceramic wall tiles

CEILINGS

C1 - Acoustic mineral fiber tiles with suspended ceiling system

C2 - Moisture resistant, washable surface mineral fiber tiles with

suspended ceiling system

C3 - Acrylic emulsion paint on fair faced concrete

3.3 Special Requirements

3.3.1 Air Conditioning

a) A central air conditioning system with air cooled condensing unit shall maintain the

specified indoor design conditions.


system.

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3.3.2 Emergency Escape Routes

Maximum travel distance from the means of exit to any point in the building shall be 15m. All

doors shall open in the direction of the escape route and be so positioned so as not to block any

stairway. Signs shall be supplied and erected to indicate clearly the route of escape in case of

emergency.

4. SUBSTATIONS


Substations shall be of single storey, blast resistant building. The 1st floor level shall be raised

300mm above the finish grade level .

The construction shall consist of generally in-situ reinforced concrete foundations, columns,

floor or roof slabs and beams. On two ends of the switchgear room a single door shall be

installed as personnel door, and on the front end a double door shall be installed sized for the

passage of the largest piece of equipment.

The layout and design of substations, including drainage systems, cabling, etc. shall be such as

to allow for future horizontal extension.

The working floor area shall be divided or fire compartmented by full height walls to provide the

following areas :

- Switchgear Room

- FAR Room

- UPS Room

- Battery Room

- Gas Extinguishing System Cylinder Room

- Air Lock



The External wall shall be in-situ reinforced concrete designed to withstand pressure as specify

in clause 2.3. The outer face shall be colored painted on fair faced surface. The transformer

partition walls shall be in-situ reinforced concrete minimum 200mm thickness and shall be

extended not less than 600mm for transformer side and height. The transformer partition walls

shall be fair faced finish.

4.2.2 Interior Walls and Partitions

Internal walls shall be non-load bearing dense concrete blocks, 200mm thick (no fire resistance

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requirement).


All external doors shall be 2-hour fire rated designed to resist an explosion pressure.

Doors and frames shall be designed for the same forces as applied normally to the walls in

which the doors are mounted in accordance with Section 2.3.6

Construction shall be from flush finished painted galvanized steel sheet, secured to a fabricated

steel section framework, provided with an insulating core from non-combustible materials to

satisfy the requirements of the standard NFPA fire test.

All doors are to be hung in profiled galvanized steel frames, securely fixed into formed rebated

openings in the reinforced concrete walls. Each door leaf shall be provided with frame mounted

air sealer stripping to maintain an air tight seal.

Double leaf equipment access doors shall be provided with a vertical removable steel bearer,

mounted at the meeting stiles to provide additional support against the design overpressure,

this bearer shall be capable of transmitting the overpressure design forces, from the door into

the reinforced concrete wall structure. One leaf may also be used as a personnel door but the

other leaf and over panel when not in use shall be bolted to the frame.

All doors are to be single swing opening outwards to the following sizes including frames:-

- Personnel 0.9m x 2.1m

- First Aid Access 1.5m x 2.1m

- Equipment Access 1.8m x 2.1m*

Note:

The opening height for doors marked thus * are to be a minimum of 2.7m. Frames are to be

provided with a removable transom that will enable fixing in of an over door panel. This panelshall be constructed from materials consistent with those of the door and shall be designed to

withstand the same design pressures.

4.2.4 Floors

All areas shall be in-situ reinforced concrete slabs, finished in accordance with clause 4.2.7 and

supported directly over RC walls or by RC beams spanning the walls.

Where cable voids are required to suit electrical or instrument equipment, areas are to be

provided with a full access raised modular flooring system, comprising 600mm square panels

set to line and level on adjustable pedestals placed to suit the 600mm modular grid.

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4.2.5 Roofs

Roof construction shall be from an in-situ reinforced concrete slab supported by RC beams

spanning the load bearing RC walls.

The top surface of the slabs shall be formed to falls and finished with a constant thickness finish

comprised of the following duplicate waterproofing system:-










- Rigid Insulation



- Slip Membrane



- Screed Concrete


insulation layer.



4.2.6 Drainage and Sewerage

Roof rainwater shall be directly trapped through parapet walls by external stainless steel hopper

heads and drained out by stainless steel pipes to the storm water drainage system. Stainless

steel down pipes shall be suitably fixed to building fronts. Transformer pits shall discharge to

drainage system through adjacent reinforced concrete trapped gullies.

4.2.7 Finishes

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Switchgear Room F3(a) W1 C3

FAR Room F2/F3(a) W1 C1

UPS Room F3(a) W1 C3

Battery Room F3(a) W1 C3

Gas Extinguishing System Cylinder Room F3(a) W1 C3

Air Lock F3(a) W1 C3

FLOORS

F1 - Vinyl tiles on screedF2 - Vinyl tiles on access flooring





F6 (a) - 300mm x 300mm Non- slip ceramic tiles on sand/cement bed


NOTE 2

The junction of walls and floors is to be finished by a 100mm minimum height Vinyl skirtingcarried out in materials consistent with the surrounding floor finish. Where ceramic tiles are


used.

NOTE 3

Any un-finished concrete surfaces under access flooring shall be sealed by the application of an

epoxy based dust proofing paint.

WALLS





CEILINGS


C2 - Moisture resistant, washable surface mineral fiber tiles with

suspended ceiling system


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4.3 Special Requirements

4.3.1 Transformer Compounds

Suitable concrete pads or pedestals shall be provided for mounting transformers and earthing

resistors.

Pedestals for transformers equal or greater than 2MVA shall be located inside reinforced

concrete pits, having sufficient volume to contain the transformer total oil quantity, filled with

25/50mm graded pebbles. The pit shall have a sloping bottom with a suitable fire trapped

drainage facility, connected to the AOC drainage system.

The entire area around transformers rated below 2MVA shall have a common 200mm perimeter

kerb and the void between the kerbs and the equipment pads shall be filled with graded pebbles

laid on unpaved soil, having a total volume sufficient to contain any one transformer oil.

A common demountable fence with lockable access doors shall be provided. Concrete fire wall

shall be provided between HV terminal boxes, between adjacent transformers and between all

transformers, such walls shall be fire-resistant.

4.3.2 Handrailing and Fencing

Handrailings for platforms shall be painted galvanized steel. Removable sections shall be

provided in front of the switchgear room double doors.

Fencing shall be galvanized coated welded steel mesh, in removable galvanized steel framed

panels. Gates shall be provided where required.

4.3.3 Cable Entries through Walls and Floors in the Field Auxiliary Room(FAR) and Switchgear Room

The cable entries for electrical and instrument cables shall be distributed over the exterior walls

of the electrical and instrument equipment room.

Equipments ducts or cables into Switchgear Room through the wall shall be suitably sealed.

No piping for drainage or utilities except for instrument air supply shall be routed through the

cable void or the instrument equipment, battery room or electrical room. No electric cables,

except for instrument/computer electricity supply and illumination, shall be routed through the

cable void.

The proper level and detailing of cable entries into the wall void shall be made at such a level

and detail so as to prevent penetration of rain water, fire-fighting water, oil, liquefied gas or other

liquids, finding its way into the void.

Cable support shall be provided for cables entering through cable transits to ensure that cables

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enter horizontally by utilizing a concrete support which shall extend approximately 1000mm fromthe building.

4.3.4 Approach Ramps

Approaches to the main entrances of Field Auxiliary Room(FAR) shall be ramps with a slope of

not more than 1 in 8 with a non-slip finish on the top surface.


The substations shall be air-conditioned by packaged air conditioner with air cooled condensing

unit to maintain the specified indoor design conditions.A small section of the roof structure shall be extended to provide an enclosed reinforced

concrete chamber of maximum height 1.8m, completed with blast/suction proof valves, exhaust

air louvers and a fresh air intake stack with chemical filter inside. The entire installation shall be

sized to suit the requirements of the HVAC design.

5. CANTEEN BUILDING


The Canteen Building is contained within a two storey concrete framed building.


following minimum U values are maintained.

Walls 0.60W/m2C

Roofs 0.45W/m2C

The Canteen Building shall comprise the following :

- Kitchen Room with small Store Room

- Staff Canteen

- Toilet

- Storage

- Gas Store

- Water Heater Room

- Washing-up Room



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External Walling shall be formed from 200mm thickness dense concrete block except for StaffCanteen which shall be aluminum frame and glass with sliding door.

5.2.2 Interior Walls and Partitions

Internal walls shall be 200mm thickness dense concrete blocks by full height walls.

5.2.3 Doors

Main entrance at north and south of staff canteen shall be double glass doors (swing type) with

heat absorbing glass.

Generally doors to be zero fire rated wooden doors except doors to Gas Store shall be 1 hour

fire resistant (steel door), solid core, plywood faced, hardwood lipped all round. Doors shall be

hung in profiled galvanized pressed steel frames.

Single doors and the actives leaves of double doors shall be provided with self closers.

5.2.4 Floors

All area shall be in-situ reinforced concrete slabs, finished in accordance with clause 5.2.9 and

supported directly over R.C. beams

5.2.5 Roof

Roof to be composite insulated metal roof sheeting to give U value of 0.45W/m2 C . The floor

above corridor shall be slab concrete and surrounded by a concrete parapet.


Ceiling shall be provided with acoustic patterned or smooth, washable, moisture proof mineral

fibre tiles, all attached to a support/suspension system, galvanized pressed steel components:

screw and plug fixed to the concrete soffits.

5.2.7 Sanitary Ware

All fittings shall be from white glazed vitreous china, fired clay or stainless steel supplied as


W.C s shall be from vitreous china complete with a low level flushing cistern and connecting

fitment s including P trap.




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Cleaners room sinks shall be in fired clayware, cleaners sink pattern, approx. size 0.61 x 0.30

x 0.23 deep, complete with wall mounted chromium plated bib taps, hinged bucket grating,


Drainage of Kitchen Room shall be lined to grease tap provided in each room prior to draining

out to sanitary system.


STAFF CANTEEN AND TOILETS

a) The Canteen shall be air-conditioned by packaged air conditioner with air cooled

condensing unit to maintain the specified indoor design conditions.


system.

c) Ventilation of toilets shall be by motor driven, exhaust air fans. Make-up air shall be thru

louvered or undercut doors.

d) Remote located, individual offices will be air conditioned by thru-wall (window type) or splittype air conditioning units.

5.2.9 Finishes


Kitchen Room F6 (b) W4 C2

Staff Canteen F5 W1 C1

Storage F3(a) W1 C3

Gas Store F3(a) W1 C3

Store Rooms F3(a) W1 C3Water Heater Room F3(a) W1 C1

Toilets F6 (b) W4 C2

Washing up Room F6 (b) W4 C2

Board Room F4 W1 C1

Directors Room F4 W1 C1


Reception Room F4 W1 C1

Locker F1 W1 C1

Shower Room F6(b) W4 C2

Toilet F6(b) W4 C2

Walkway F5 W1 C1

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FLOORS




F3(b) - Epoxy paint coating on concrete hardener





NOTE 1




used.

.

WALLS





CEILINGS


C2 - Moisture resistant, washable surface mineral fiber files with suspended

ceiling system


6. MAINTENANCE WORKSHOP AND WAREHOUSE


MAINTENANCE WORKSHOP:

The Maintenance Workshop shall be housed within a single span steelwork portal framed

structure, and shall be provided with a two storey construction along one side to accommodate

offices and ancillary accommodation located on both floors.

The structural steel frame of the Maintenance Workshop shall be also designed for support a full

length Electrical Overhead Traveling crane with an auxiliary hoist of 30 ton capacity, having a liftheight

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of 7m. The height to eaves will be approximately 10m, subject to confirmation by MAINCONTRACTOR, and the roof pitch shall be not less than 6.

MAIN CONTRACTOR shall be responsible for supply and installation Electrical Overhead

Traveling crane with an auxiliary hoist of 30 ton capacity completed with runway beam and all

auxiliary facilities required e.g. Electrical power supply etc..

WAREHOUSE:

The Warehouse consists of machine and spare parts storage, chemical storage,

loading/unloading bay and office.

The machine and spare parts storage shall be housed within a single span steelwork portal

framed structure and shall have an elevated floor to allow loading and unloading. The external

walls and roof of machine and spare parts storage shall be of insulated profiled metal sheeting

with a concrete masonry dado wall to a height of 2.1m.

The machine and spare parts storage shall contain within it suitably sized and air conditioned

rooms cover two storey of the storage for all environmentally sensitive instrumentation and

electrical spares.

The chemical storage shall be housed within a single span steelwork portal framed structure.

Within the chemical storage shall be an elevated foam storage vessel with access provision for

the foam tender beneath the vessel to cover the oil storage area.

The chemical storage should have kerbed floor to contain any spillage.

External walls and roof of chemical storage shall be of insulated profiled metal sheeting with a

concrete masonry dado wall to a height of 2.1m.

Thermal insulation of these buildings shall be provided to the walls and roof to ensure thefollowing minimum U values are maintained.

Walls - 0.6W/m2C

Roof - 0.45W/m2C

The floors shall be reinforced concrete slab with a epoxy paint coating on concrete hardener for

heavy duty purpose to the Warehouse and Maintenance Workshop.

The officers shall consist of in-situ reinforced concrete slabs supported by structural steelwork

beams and load bearing concrete masonry walls.

Each area shall be divided or fire compartmented by full height, walls to provide the following

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areas:

MAINTENANCE WORKSHOP

- Offices

- Meeting Room

- Supervisor Room

- Coffee Room / Pantry

- Operation & Maintenance of Electrical and Instrument

- Operation & Maintenance of Mechanical

- Tool Room

- Staff Facilities (Toilets, Showers, Locker Rooms)

WAREHOUSE All at approx. 1.2m above grade

- Machine and spare parts storage area

- Chemical Storage Area

- Loading/Unloading Area between machine and spare parts storage and chemical storage

- Forklift Park/Charging Area

- Offices (Air Conditioned)

- Toilet Facilities



Shall be profiled metal sheeting, with insulation and internal lining sheet to give 0.6W/m2C U

value above dado wall.

Dado wall to be provided at a height of 2.1m framed in 200mm dense concrete blocks plus

50mm rockwool insulation board with 25mm air gap and 100mm internal dense concrete block

Two-storey areas shall be of dense concrete cavity block work construction to give 0.6W/m2C

U value. Wall thickness shall be designed to meet slenderness and stability requirements.


Shall be 200mm dense concrete block with plastering and painting in Maintenance Workshop,

Warehouse and enclosing walls of office areas, staircase and corridors. Wall bracing shall be

provided if necessary to meet slenderness requirements.

Division walls of offices at 1st floor level shall be lightweight partitioning to a nominal thickness

of 100 mm from a steel stud and plasterboard system, comprising of two 12.0mm gypsum wall

boards secured to each face of galvanized metal studs, at 600 centers.

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The Warehouse is to be provided with 3 No. electrical sliding doors, 5m wide x 4m high, top

hung with guides cast-in to RC slab.

Doors to be flush finished painted galvanized steel sheet secured to a fabricated steel section

framework, with insulation core to give required U value.

The chemical storage is to be provided with one electrical sliding door, 5m x 4m high.

All external doors shall be rated 1 hour fire resistance. Construction shall be from flush finished

painted galvanized steel sheet, secured to a fabricated steel section framework with insulation

core.

Doors shall be hung in profiled galvanized steel frames, fixed to walls with galvanized steel lugs.

Single doors and the active leaves of double doors shall be provided with self closers, panic

latches and wind hooks.

All door sizes shall be :-

- Single doors : 0.9m x 2.1m

- First Aid Access : 1.5m x 2.1m

- Equipment Doors : 1.8m minimum x 2.5m depending on the largest piece of

equipment.

Equipment doors shall be single swing, comprising a single active leaf, and a fixed side panel.

Frames shall be provided with a removable transom that will enable fixing in of an over door

panel.

All ironmongery fittings of the same kind shall be of one make and type. They shall be stainlesssteel and shall be fixed with non-corroding screws.


Doors to offices shall be 1/2 hour fire resistant, solid core; plywood faced, hardwood lipped all

round. Doors shall be hung in profiled galvanized pressed steel frames.

Door to offices to have 150mm width x 300mm depth viewing panels with 5mm polished plate

glass.

Door to Instrument/Electrical Equipment Storage of Warehouse, 2nd Floor Corridor and 1st

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Floor Offices of Maintenance Workshop shall be 1 hours fire resistant steel door.

6.2.5 Windows

External windows shall be aluminum windows to offices, with 14mm thick double glazing,

comprising 2 light reflective, heat absorbing glass units.

6.2.6 Floors

1st floors shall be reinforced concrete slab with epoxy paint coating on concrete hardener for

heavy duty purpose to the Warehouse and Maintenance Workshop

1st floor to offices shall consist of in-situ reinforced concrete slabs supported by structural

steelwork beams and load bearing concrete masonry walls with finishes in accordance with

Section 6.2.11

6.2.7 Roof

Roof to be composite insulated metal roof sheeting shall be give U value of 0.45W/m2 C.

Roof over offices at first floor shall be reinforced concrete and surrounded by a concrete parapet.

Finish shall be of constant thickness and shall consist of the following duplicate waterproofing

system:







- Water Proof MembraneMAIN CONTRACTOR shall submit the product data sheet of the roof waterproofing


- Rigid Insulation



- Slip Membrane



- Screed Concrete

40mm concrete screed placed on the slip membrane shall be permanently protect the

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insulation layer.





tile. Toilet area to be provided with washable, moisture proof mineral fiber tiles. All ceiling tiles

shall be laid on exposed grid type suspension system.

6.2.9 Sanitary Ware



W.C s shall be from vitreous china complete with a low level flushing cistern and connecting

fitment s including P trap.









OFFICES, LOCKERS AND TOILETS

a) The office rooms shall be air-conditioned by packaged air conditioner with air cooled

condensing unit to maintain the specified indoor design conditions.

b) The system shall be completed with ducted supply, return and exhaust filters and

automatic control system.

c) Ventilation of toilets and lockers shall be by motor driven, exhaust air fans. Make-up air

shall be thru louvered or undercut doors.

d) Remote located, individual offices will be air conditioned by split type air conditioning units.

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6.2.11 Finishes


Offices F1 W1 C1

Rest Rooms F1 W1 C1

Workshops F3(b) W3

Corridors F1 W1 C1

Pantry F1 W1 C1

First Aid Room F1 W1 C1

Store Rooms F3(a) W1 C3

Electrical Switch room F3(a) W1 C3A C Plant Room F3(a) W1 C3

Locker F1 W1 C1

Toilet F6(b) W4 C2

Stairs and Landings F1 W1 C1 or C4 (See Note 1)

Laundry Room F1 W1 C1

Server Room F1 W1 C1

Warehouse F3(b) W3

Chemical Store F3(b) W3

NOTE 1:- With non slip nosing.

FLOORS



F3 (a) - Epoxy paint coating on concrete steel trowel finish






NOTE 2




used.

WALLS



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Single doors and the actives leaves of double doors shall be provided with self closers, panic



Generally doors to be zero fire rated except doors to offices shall be 1 hour fire resistant, solid

core, plywood faced, hardwood lipped all round. Doors shall be hung in profiled galvanized

pressed steel frames.

Doors to offices to have 150mm width x 300mm depth viewing panels with 5mm polished plate

glass.

7.2.5 Windows


comprising 2 heat reflective, heat absorbing glass units.

7.2.6 Floors

All area shall be in-situ reinforced concrete slabs with screed and finished in accordance with

clause 7.2.11.

7.2.7 Roof

Roof shall be in situ concrete slab supported on concrete frames. The top surface of this slab

formed to fall and finished with a constant thickness finish comprised of following duplicate

waterproofing system:










- Rigid Insulation



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- Slip Membrane

A slip membrane will allow the screed to thermally move on the rigid insulation below and will

allow the rainwater to pass the waterproofing membrane below

- Screed Concrete


insulation layer.




All offices, locker rooms, toilets and ancillary accommodation shall be provided with acoustic

patterned or smooth, washable, moisture proof mineral fiber tiles, all attached to a

support/suspension system, galvanized pressed steel components; screw and plug fixed to the

concrete soffits.

7.2.9 Sanitary Ware



W.C. s shall be from vitreous china complete with a low level flushing cistern and connecting

fitments including P trap.




and common automatic type, high level flushing cistern, approx. size 0.6 deep x 0.4m wide.



Remote located, individual offices and ancillary accommodation will be air conditioned by split

air conditioning units.

Ventilation of toilets and lockers shall be by motor driven, exhaust air fans. Make-up air shall be

thru louvered or undercut doors.

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7.2.11 Finishes


Offices F1 W1 C1

Staff Rooms/Waiting F1 W1 C1

Guard Room/Reception F1 W1 C1

Corridors F1 W1 C1

Store F3(a) W1 C3


Server Room F2/3(a) W1 C1

FLOORS









NOTE 1




used.

WALLS





CEILINGS


C2 - Moisture resistant, washable surface mineral fiber tiles with suspended ceiling

system


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8. FIELD OPERATOR HOUSE


The Field Operator House shall be a single concrete framed building, with an eaves height of

3.0m.

Thermal insulation shall be provided to the walls and roof to ensure the following minimum U

values are maintained.

Walls - 0.6W/m2

CRoof - 0.45W/m

2C

A small section of the roof structure shall be extended to provide an enclosed reinforced

concrete chamber of maximum height 1.8m, complete with blast/suction proof valves, exhaust

air louvers and a fresh air intake stack with chemical filter inside. The entire installation shall be

sized to suit the requirements of the HVAC design.

The buildings shall provide the accommodation as indicated on the above drawing.



Construction under windows to be a dado wall to be provided at a height of 0.9m framed in

200mm dense concrete blocks plus 50mm rockwool insulation board with 25mm air gap and

100mm internal dense concrete block

Where no windows wall construction to be taken full height.


Shall be 200mm dense concrete block with plastering and painting in all areas.

.

8.2.3 General Doors



core to give required U values.

Doors shall be hung in profiled galvanized steel frames, securely fixed into walls by using

galvanized steel lugs. Fixing of frames shall be such as to ensure solid, void free, water-proof

joints.


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Single doors and the actives leaves of double doors shall be provided with self closers, paniclatches and wind hooks.

All door sizes shall be:-

- Single doors: 0.9m x 2.1m

Equipment doors will be single swing, comprising a single active leaf, and a fixed side panel.

All ironmongery fittings of the same kind shall be of one make and type. They shall be stainless

steel aluminum and shall be fixed with non-corroding screws.

8.2.4 Windows

External windows may be aluminum or steel windows to offices, with 14mm thick double glazing,

comprising 2 reflective, heat absorbing glass units.

8.2.5 Floors

1st floor slab to ancillary accommodation to be reinforced concrete slab with screed and finishes

in accordance with Section 8.2.10

8.2.6 Roofs



waterproofing system:-










- Rigid Insulation



- Slip Membrane


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- Screed Concrete

40mm concrete screed placed on the slip membrane shall be permanently protect the

insulation layer.




tile. Toilet area to be provided with washable, moisture proof mineral fiber tiles. All ceiling tilesshall be laid on exposed grid type suspension system

8.2.8 Sanitary Ware













OFFICES AND TOILETS

A split air conditioning system with air cooled condensing units shall maintain the specified

indoor design conditions, each unit completed with individual automatic controls.

Ventilation of toilets and lockers shall be by motor driven, exhaust air fans. Make-up air shall be

thru louvered or undercut doors.

8.2.10 Finishes


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Offices F1 W1 C1

Pantry F1 W1 C1


Corridor F1 W1 C1

FLOORS




F3 (b) - Epoxy paint coating on concrete hardenerF4 - 500mm x 500mm carpet tiles on screed




NOTE 1


carried out in materials consistent with the surrounding floor finish.

Where ceramic tiles are specified, coved ceramic base shall be used except for the toiletswhere ceramic tiles shall be used.

WALLS





CEILINGS



system


9. LABORATORY BUILDING


Laboratory building shall be a single storey concrete frame, structure with dense concrete block.

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following minimum U values are maintained:

Walls - 0.60W/m2 C

Roofs - 0.45W/m2 C

Each area shall be divided or fire compartmented by full height walls to provide the following

areas:-

LABORATORY BUILDING (1ST FLOOR LEVEL)

- Manager Office

- Shift Office

- Chemist

- Technician

- Library

- Meeting Room

- Mess Room

- Wet Laboratory and Catalyst

- Mercury

- GC Laboratory Room

- Gas Shelter

- Hydrocarbon Laboratory

- Sample Reception

- Atomic Absorption Spectrometer (AAS)

- Restrained Sample

- Chemical Store

- Glass Ware Room

- Glass Ware Store Room

- Toilet

- Electrical Control Room



The External Walls shall be of dense concrete block construction to give 0.6W/m2 C U value.

Wall thickness shall be designed to meet slenderness and stability requirements.

Part of external walls such as the wall of the gas shelter shall be concrete wall for the

installation of laboratory equipment and/or gas tubing manifold according to the requirement of

the laboratory equipment.


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Shall be 200mm dense concrete block with plastering and painting in laboratory areas and

enclosing walls of office areas, staircase and corridors. Wall bracing shall be provided if

necessary to meet slenderness requirements.

Division walls of offices and laboratories at 1st floor level shall be lightweight partitioning to a

nominal thickness of 100mm from a steel stud and plasterboard system, comprising of two

12mm gypsum wall boards secured to each face of galvanized metal studs, at 600 centers.


Doors to be flush finished painted galvanized steel sheet secured to a fabricated steel sectionframework, with insulation core to give U value.



core.


Single doors and the actives leaves of double doors shall be provided with self closers, panic


All doors are to be single swing opening outwards to the following sizes:-

- Single Doors : 0.9m x 2.1m

- First Aid Access : 1.5m x 2.1m

- Equipment Doors : 1.8m minimum x 2.5m depending on the largest piece of equipment

Equipment doors shall be single swing, comprising a single active leaf, and a fixed side panel.

Frames shall be provided with a removable transom that will enable fixing in of an over doorpanel.

All ironmongery fittings of the same kind shall be of one make and type. They shall be stainless

steel aluminum and shall be fixed with non-corroding screws.


Doors to offices shall be 0.5 hour fire resistant, solid core, plywood faced, hardwood lipped all

round. Doors shall be hung in profiled galvanized pressed steel frames.

Doors to office to have 150mm width x 300mm depth viewing panels with 6mm polished plate

Georgian wired glass.

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9.2.5 Windows


comprising 2 light reflective, heat absorbing glass units. All external windows shall be sunlight

protection coating and/or film.

9.2.6 Floors

1st floor slab to be reinforced concrete slab with finishes in accordance with Section 9.2.11.

9.2.7 Roof



waterproofing system:










- Rigid Insulation



- Slip MembraneA slip membrane will allow the screed to thermally move on the rigid insulation below and


- Screed Concrete


insulation layer.




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tile. Toilet area to be provided with washable, moisture proof mineral fiber tiles. All ceiling tilesshall be laid on exposed grid type suspension system.

Height of suspended ceiling for all laboratory rooms shall be 3meters from finished floor.

9.2.9 Sanitary Ware









Cleaners room sinks shall be in fired clayware, cleaner s sink pattern, approx. size 0.61 x 0.30




GENERAL

a) Separate heating and ventilation systems shall be provided for laboratories and office

accommodation.

b) The following minimum room temperatures shall be maintainable:

Area Summer Winter

i. Laboratory Rooms 20-25C 20-25C

ii. Office Areas 20-25C 20-25C

LABORATORY ROOMS

a) A central air conditioning system with air cooled condensing unit shall maintain the specified

indoor design conditions.

b) The system shall be completed with ducted supply, return and exhaust filters and automatic

control system.



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a) A separate air conditioning system with air cooled condensing unit shall maintain the

specified indoor design conditions.

b) The system shall be completed with ducted supply, return and exhaust filters and automatic

control system.

c) Ventilation of toilets and lockers shall be by motor driven, exhaust air fans. Make-up air shall

be thru louvered or undercut doors.

9.2.11 Finishes

Manager Office F1 W1 C1

Shift Office F1 W1 C1

Chemist F1 W1 C1

Technician F1 W1 C1

Library F1 W1 C1


Mess Room F1 W1 C1

Wet Laboratory and Catalyst F6(a) W1 C1

Mercury F6(a) W1 C1

GC Laboratory Room F6(a) W1 C1

Gas Shelter F3(a) W1 C3

Hydrocarbon Laboratory F6(a) W1 C1

Sample Reception F6(a) W1 C1

Atomic Absorption Spectrometer (AAS) F6(a) W1 C1

Restrained Sample F6(a) W1 C1

Chemical Store F6(a) W1 C1

Glass Ware Room F6(a) W1 C1

Glass Ware Store Room F6(a) W1 C1

Toilet F6 (b) W4 C2

Electrical Control Room F3(a) W1 C3

Corridor F1 W1 C1

FLOORS









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NOTE 1


carried out in materials consistent with the surrounding floor finish.

Where ceramic tiles are specified, coved ceramic base shall be used except for the toilets

where ceramic tiles shall be used.

skirting shall be used.

WALLS





CEILINGS



system


9.2.12 Laboratory Furniture

The Laboratory furniture shall be furnished in accordance with the following requirements:

a) Base Units

- Cabinet bases shall be free standing modularized design with provision for a 200 mm. utility

raceway for service lines and drains behind cabinets.

- Chemical resistant acrylic finish coat and heat cure shall be applied for Cabinet base

components, a multi-step cleaning and treatment to ensure permanent bonding of the

chemical resistant finishing coat to metal surface

- Shelves shall be roll-out type for bases of less than 600 mm. in width. Otherwise, half

depth shelves resting on adjustable shelf clips shall be provided.

- All non-chromed or non-stainless steel components shall receive a chemical resistive

coating before assembly.

- Chemical resistant surfaces shall be tested using ten drops of the chemicals listed below

and then covered by a watch glass for one hour. After the surface has been washed with

soap and water, rinsed and dried, it shall show No Effect other than a slight change in

gloss which is visible only from a grazing angle.

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Acetone Hydrogen peroxide,5%Carbon tetrachloride Nitric acid, 25%

Ethyl alcohol Sodium hydroxide,10%

Ethyl Ether Sodium hydroxide,25%

Formic acid, 88% Sulfuric acid, 85%

Glacial acetic acid Xylene

Hydrochloric acid, 37%

No Effect shall mean Chemical caused no alterations to surface .

- Base moldings to cover unit base and shims shall be provided in black vinyl, covered at the

bottom to provide a watertight seal when cemented against base and floor. They shall beinstalled continuously around the base after installation and leveling of unit.

b) Furniture worktops

- Worktops and sinks

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