Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.

इंटरनेट मानक

“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda

“Invent a New India Using Knowledge”

“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru

“Step Out From the Old to the New”

“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan

“The Right to Information, The Right to Live”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam

“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 7078 (1973): Plastics used in instrument industry [PGD22: Educational Instruments and Equipment]

IS : 7078 - 1973

Indian Standard PLASTICS USED IN INSTRUMENT INDUSTRY

( Second-Reprint DECEMBER 1995 )

UDC 678.5/.8.06:681.2

Gr 7

0 Copyright 1974

BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

April 1974

IS : 7078-1973

Indian Standard PLASTICS USED IN INSTRUMENT INDUSTRY

Optical and Mathematical Instruments Sectional Committee, EDC 36

Chairman DR C. S. RAO

Kailas, Frenchpet, Masulipatam

All India Instrument Manufacturers and Dealers Associa- tion, Bombay

SHRI V. K. VASUDEVAN (Akrnate) SHRI A. N. BHATTACHARYA SHRI J. CIII\TTER.IEE CHII~F HYDROCRAPI~ER (NAVY) DEPUTY DIRECTOR, STANDARDS (TRACK)

Ministry of Defence (R & D) Survey of India, Debra Dun Naval Headquarters Research, Designs and Standards Organization (Ministry

of Railways), Lucknow ASSISTANT DIRECTOR, STANDARDS (TRACK)

(A[terna1e) DIRECTOR, INSTRUMENTS RESEARCH &

DEVELOPMENT ESTABLISHMENT SHRI S. S. DHARMAYYA (Altcmalc)

SHRI S. K. GAUTAM

Ministry of Defence (R & D)

Quality Marked Goods Manufacturers’ Co-operative Association Ltd, Roorkee

SHRI P. L. B~~ARDWAJ (AIlcmaU) StIRI S. K. CHOSE

SHRI A. GHOSH SHRI P. C. JAIN

SHRI RAM PRA~AD (Alfemate) SHRI D. D. KHOSLA

Dire$eg;ceGeneral, Ordnance Factories, Ministry of

National Test House, Calcutta National Physical Laboratory (CSIR), New Delhi

Directorate of Industries, Government of Haryana, Chandigarh

COL K. L. KHOSLA COL N. P. MANAKTALA

LT-COL H. LAL (Affemale) SHRI B. R. MANKHAND DR M. V. R. K. MURTY LT-COL B. PAPANNA DR J, PRA~AD

The Institution of Surveyors, New Delhi Ministry of Defence (DGI)

The Koh-i-Noor (India) Private Ltd, Varanasi Department of Atomic Energy, Bombay Army Headquarters Central Scientific Instruments Organization (CSIR),

Chandigarh SHRI RAM SIXGH (Alternate)

SHRI S. RAGHVIAH

SHRI E. B. RAJDERXAR KUXARI SUB~S RAJDERKAR (Alfemnfe)

SHRI K. N. RAMASWA~~Y SHRI P. V. MAMMEN (Alternate)

SHRI C. NARAYANA RAO DR I. RAYAKRISHNA RAO

Ofice of the Development Commissioner, Small Scale Industries (Ministry of Industrial Development)

Raj-Der-Kar & Co, Bombay

Directorate General of Technical Development, New Delhi

PROF G. S. S. SARHA LT-COL G. S. SIIXOTA

The Andhra Scientific Co Ltd, Masulipatam In personal capacity (Toshniwal Instrument; and Engineering

Co, IOA Najafgarh Road, Jvew Delhi 15) Madras Institute of Technology, Madras Directorate General of Armed Forces Medical Service,

Ministry of Defence SURVEVOR OF WORKS I [OFFICE OF THE

SUPERINTENDING SURVEYOR OF WORK.S (NDZ)] SHRI K. G. TORGAL

Central Public Works Department, New Delhi

The National Instruments and Ophthalmic Glass Ltd, Calcutta

SHRI A. GHOSH (Allernnle) SHRI H. C. VERMA Associated InStrument Manufacturers (India) Private

Limited, New Delhi SHRI K. G. PIJRANG (Allcrnale)

SIIRI S. M. RAZVI, Deputy Director (h&h Engg)

Director General, ISI (Ex-@cio Member)

SCCrClUry

SHRI S. P. ABBEY Assistant Director (Mech Engg), ISI

(Continued on page 2)

Q Copyright 1974

.BUREAU OF INDIAN STANDARDS This publication is protected under the Indian C@yright Act (XIV of 1957) aqd reproduction in whole or in part by any means except with written permission of the publisher shnll bz deemed to be an infringement

of copyright under the said Act.

JS : 7078 - 1973

(Ccmtmed frmn page 1)

Mlteriali and Chqxwents for Tns:rumer:ts Sulxommittee, EDC 36 : 5

Conoener Representing

5%~ H. (1. VERMA zlssociated Instrument Manufacturers (India) Private Limited, New Delhi

Srmr B. R. CHAKARAMRTI SliKI S. K. tiHOSE

LT-COL H. LAL SHRI H. N. DE (Aker?zale)

SI:RI S. K. MURHERJIX DR J. PRASAD

StIRI K. N. RAMASWPlMY SIIRI P. V. MAMMEN (Alternate)

SHRI RAM PRASAD

Ministry of Defence (R & D) Directorate General, Ordnance Factories, Ministry of

Defence Ministry of Defence (DGI)

Precision Optics & Machineries (P) Lt<, Calcutta Central Scientific Instruments Orgamzation (CSIR),

Ghandigarh Directorate General of Technical Development, New Delhi

National Physical Laboratory (CSIR), New Delhi

IS : 7078 - 1973

Indian Standard PLASTICS USED IN INSTRUMENT INDUSTRY

0. FOREWORD

0.1 This Indian Standard was adopted by the materials commonly used in the fabrication of

Indian Standards Institution on 30 October 1973, instruments or instrument parts, and facilitates after the draft finalized by the Optical and Mathe- selection of the proper plastic for any particular matical Instruments Sectional Committee had purpose. It further provides information relating been approved by the Mechanical Engineering to the types and furms in which these plastics are Division Council. normally available, and suggests methods of

0.2 This standard provides useful data on plastic selection for use in instrument industry.

1. SCOPE *

1.1 This standard covers the physical characteris- tics and end uses of commonly used types of plastic materials. In order to facilitate comparison and proper selection of plastic material for instruments, the commonly used trade names have also been indicated.

2. TERMINOLOGY

2.0 For the purpose of this standard, the definitions given in IS : 1399-1959* and IS : 2828-1964t, and the following shall apply.

2.1 Compressive Strength - Physical property of the material to stand up to compressive force. It is the highest stress reached before the material breaks under compression.

2.2 Cold Flow - Dimensional change due to applications of sustained loads in excess of elastic limit.

2.3 Heat Sealing-The joining together of films of thermoplastic materials by the application of heat and pressure (except high frequency heat).

3. TYPES

3.1 Plastics are brijadly classified in two categories as follows :

a) Thermoplastic materials, and b) Thermosetting materials.

4. FORMS

4.1 Plastics are normally available in form of rod, tube, sheet, block, film, foil, granule, fine powder, bead, foam, fibre, fabric, emulsion, organic solution, resin and paste.

5. COLOURS

5.1 Plastics are available in transparent, translu-

*Glossary of terms used in optical technology. tGlossary of terms used in the plastics industry.

3

cwt or opaque grades. The colour range extends to pearls, mottles and metallics.

5.2 Besides, plastics may be dyed in practically all colours like black, brown, maroon, green, blue and other natural colours in darker shades.

6. POSSIBLE APPLICATIONS

6.1 In instruments industry, plastics find their use in the fabrication of dials, cells, batteries, knobs, panels, optical components, protractors, set squares, scales, French curves, railway curves, tracing materials, instrument cases, photographic films, surgical instruments, laminates, switches, bearings, gears, cams, washers, gaskets, bellows, diaphragms, piston rings, pressure tapes, valve holders, handles, and shock absorbing systems, etc. Plastics are also used for electrical fittings, packag- ing and safety glass interlayers, etc.

7. GENERAL REQUlREMENTS

7.1 Stones and Crystallization Bodies - Plastics intended for use in instruments and instrument parts shall be totally free from the fragments of undispersed raw material, streaks, particles of foreign matter, crystallized deposits and deposits of any of the constituents.

7.2 Durability - The material shall be durable and free from surface acidity or alkalinity. The polished surfaces shall be capable of withstanding atmospheric attack.

7.3 There shall be no defects like blisters, porosity, blemishes, pinholes, pits, bloom and chalking, and the edges shall be free from cuts.

7.4 Plastics used in instruments and instrument parts shall not appreciably crack, wrinkle and show surface impairment or sign of warpage during its use.

7.5 Plastics used for instruments shall be able to withstand constant handling and shall have good insulation property, dimensional stability and resistance to he~,t hot water, solventsand chemicals.

IS : 7078 - 1973

7.6 Plastic materials used for fabrication of an instrument shall be smooth and preferably non- inflammable.

7,7 The material shall have capability of with- standing repeated deformation when used for fabrication of flexible parts which are subjected to repeated mechanical stresses.

8. SPEClAL REQJJIREMENTS

8.1 When used as an optical element, plastic materials shall, in addition to satisfying the requirements laid down in 7, conform to the requirements of optical glass as specified in IS : 1400-1960”.

9. METHODS OF SELECTION

9.1 The selection of a suitable plastic material for a particular instrument shall depend mainly on its physical and chemical characteristics.

9.1.1 In case of electrical and electronic instru- ments, the dielectric strength and other electrical properties of the intended plastic material shall be taken into consideration.

9.1.2 In choosing a suitable material for instru- ment designed to function in extreme field service conditions, the water absorption of the material, its dimensional stability, thermal expansion and resistance to weathering conditions shall be the main basis of selection. In addition to these, the different physical properties shall also be taken into consideration

9.1.3 In the selection of a plastic material for any other type of instrument, the consideration of the colour of the material, its specific gravity and other physical characteristics shall depend upon the nature and type of work to be taken by the instrument.

9.2 After selecting a suitable material for the required purpose, the proper form available shall be chosen for the particular work. In case the intended form is not available, choice for the next suitable material shall be made, if possible.

9.3 The forms available, physical characteristics and possible applications of different thermoplastic and thermosetting materials are given in Appen- dix A and Appendix B respectively. The possible applications given in Appendices A and B may be taken as a guide in the selection of a material.

9.4 In selecting suitable plastic material to replace any metal part in an instrument, the design for plastics must be taken into account, for what is ccnsidered good design practice for metals will not necessarily be good practice for moulded plastics.

10. PLASTICS USED IN INSTRUMENT INDUSTRY

10.1 The following thermoplastic materials have been covered in Appendix A:

*Specification for optical glass.

‘1 2)

3) 4) 5) 6) 7) 8) 9)

10)

11) 12) 13)

14)

15)

16) 17) 18) 19) 20)

21)

Material Abbreviation

Acetal POM Acrylonitrile butadiene ABS styrene Cellulose acetate CA Cellulose acetate butyrate CAB Cellulose nitrate (celluloid) CN Cellulose propionate -

Cellulose triacetate CTA Chlorinated polyether -

Ethyl cellulose EC Fluorocarbons

i) Polytetrafluoroethylene PTFE or TFE

ii) Polytrifluorochloro- PTFCE or ethylene PCTFE

iii) Fluoroethylerre propylene FEP or fluorinated ethylene propylene

iv) Fluorohalocarbon -

Polyamide (nylon) PA Polycarbonates PC Polyethylene (high density HDPE above 0.940) Polyethylene (low density up LDPE to 0.925 and medium density from 0.925 to 0.940) Polymethyl methacrylate PMM or (acrylic) PMMA Polypropylene PP Polystyrene PS Polyurethane PU Polyvinyl butyral PVB Polyvinyl chloride (unplas- PVC ticized, rigid and flexible) Polyvinylidene chloride PVDC (Saran)

10.2 The following thermosetting materials have been covered in Appendix B:

1) 2) 3)

4)

5)

6)

Material Abbreviation

Alkyd AK Epoxy resins (egoxide) EP MeIamine formaldehyde MF (melamine) Phenolic (phenol PF formaldehyde) Polyester PR Urea formaldehyde (urea) UF

11. TESTS

11.1 Plastics shall be tested for their different physical characteristics by the methods specified in the relevant Indian Standards.

11.2 Plastic materials used as optical elements

4

IS : 7078 - 1973

shall be tested for optical properties by the methods 13. UNITS specified in IS : 1400-1960*.

13.1 Various units used in Appendices A and B

12. PACKING AND PACKAGING are as follows:

12.1 Plastic materials shall be wrapped in packing paper and then the packages shall be secured by adhesive tapes.

12.2 Each package shall be marked clearly with the type of material, form and size in which supplied.

12.3 Such packages shall then be packed in well- closed moisture proof containers in accordance with the normal commercial practice.

12.4 Information regarding the type, form, size and quantity of the material together with the name of the manufacturer and place shall be marked on the box (container).

12.5 Wherever required, the packaging shall be done in accordance with the agreement between the purchaser and the supplier.

a)

b)

Cl

4

e)

f )

.d

h) Dielectric strength

Density

Water absorption

Tensile strength

Compressive strength

Impact strength

Thermal expansion

Injection moulding,/ moulding temperature

4 cm3

percent in 24 hours

MPa or MN/m”

MPa or MN,‘m’?

J

cm/cm “C

“C

V

c’”

*Specification for optical glass.

5

APPENDIX A (Clarcter 9.3, 10.1 and 13. I)

PLASTPCS USED IN INSTRUMENTS INDUSTRY, THERMOPLASTIC: MATERIALS

111_11

St. hfATERrALs FORMS I'IIYSIC.\L C:iiAnAcTeRr~rlcs No. 1

PcmlBLE .lPPLICAT:':U.z j ( :c!\f\loi' 'I-RADE AVAILABLC I

(1) (21 (3) (4) Y \Vl’i

i 1 -- -___

1 Acetal Rod Translucent and opaque colours, natural material IS crearr: or white Tube Specific gravity

- ~---_e;G-~---~---~ tJ - (,r-i~lXl ‘~.~l,polvmer; ! 11-I.-l?.5 / I klr1r:

Shrrt \\‘ater absorption O l?-O-L (Gear\ ill>lllip>!y%icI! Grnnulrs Tensile strength 56.2-793 Resin

Garns / H~,\t,i!;,rn! Compressive strength I I2,i-126.5 Hinges Impact strength 1 i-3.0

‘<‘iJpw~iner) Handles

Thermal expansion 88.2 ’ 10-j Injection moulding temperature 170-22.5 Dielectric strength 1 j 80-19.70 Refractive index i.48 Inflammability Slow burning

One of strongest and stiffest plastic, high gloss, noteworttiy resistance to organic j solvents. poor resistance to acids and alkatis, good abrasion resistance, LOW coeflicient of friction

2 Acrylonitrile C;t-nnules Translucent to opaque colours butadiene

Instrument panels Sheet

.Abson V-acuum cleaners Abstrene

styrene Pipe Specific gravity 1 OL-1.1 Storage cases Afcolene Rod \V.tter absorption 0.2-0.3 Resin Tensile strength

Blendex (resin) 21.1-61.7

Compressive strength 17.5-77.3 Cycolae Cycolon

Impact strength 9.8-l 17.7 Editer Thermal expansion 7.3-10.4 X 10-s Kralastic Injection moulding temperature 180-250 Lorkaril Dielectric strength 13.80-19.70 Lustran Inflammability Slow burning Novodur

Royalite (sheet) Sicoflex

Rigid and hard material having a fair to medium surface gloss. It is cream trans- Tronal (sheet) lucent in natural form Urtal

3 Cellulose Rod Transparent and all colours in translucent and opaques, including mottles, pearls Spectacles frames Tube

Acelon acetate and metallics Film spools

Sheet Acetable

Block Electrical components Bexoid

Specific gravity Film

1.25-1.35 Recording tapes Celastoid Water absorption 0.25-4.0

Granules Photographic films

Tensile strength Cellidor A, S, U

Fabric 10.5-56.2 Knobs Clarifoil

Compressive strength Solution

126.5-175.8 Packaging Dexel Impact strength 0.7-6.5 Thermal expansion

Safety glass interlayers Erinoid -acetate 8-15 x 10-s Eye shields Kodapak-1

Injection moulding temperature 155-220 Cine films Lustrac Dielectric strength 5.9-25.6 Drafting instruments Monoflex Refractive index 1.5 Inflammability

Nixon CA Slow burning Rhodnid

Sicatel Ease of moulding, ease of fabrication, superior clearness, durable, flexible in thin Tenite 1

sections Tenite acetate

4

5

6

7

-_

-_

- .

Cellulose acetate butyrate or cellulose acetobutyrate

Cellulose nitrate (celluloid)

Cellulose propionate

Cellulose triacetate

Tube Sheet Film Granules Fine powder

Sheet Film Solution

- Granules Sheet Film

Film

Transparent and all colours in translucent and opaques, including mottles, pearls and metallics

Specific gravity 1~15-1.22 Water absorption 0.9-2.2 Tensile strength 17.5-49.2 Compressive strength 35.1-140.6 Thermal expansion -1 l-17 x 10-e Injection moulding temperature 160-220 Dielectric strength 9.85-15.80 Refractive index 146-1.49 Inflammability Slow burning

Resistance to heat and weathering conditions, high gloss, good dimensional stability, flexible in thin sections

Transparent, translucent and opaque colours, including pearls, mottles and metallics

Specific gravity 1.35-1.7 Water absorption 0.5-2’0 Tensile strength 38.7-66.8 Compressive strength 154.7-246.0 Impact strength 8.1-10.8 Thermal expansion 6-16 x 10-s Dielectric strength 9.85-13.80 Refractive index 1.49-1.51 Inflammability Highly inflammable

Ease of machining, ease of fabrication, flexible in thinner sections

rransparent, translucent and opaque colours

Specific gravity 1.17-1.24 Water absorption 1.2-2.0 Tensile strength 18.3-47.8 Compressive strength 16.9-154.7 Impact strength 1.4-13.7 Thermal expansion 10-15 x 10-s Injection moulding temperature 150-260 Dielectric strength 31.5-59.1 Refractive index 1.46-1.49 Inflammability Slow burning

Tough dense material with high gloss. Flexibility varies with p!asticizer content. Excellent transparency, good grease resistance and freedom from discolouration, embrittlement upon ageing

--__ Transpaknt colours

Specific gravitv Water absorption

1.26-1.34 1.3-3.1

Tensile strength 56.2-77.3 Compressive strength 98~4-140~6 Impact strength 1.4-6.8 Thermal expansion 10-162: ii)-” Dielectric strength Y~Ej-lS~HO Inflammability

Improved dimensional staul!iiy, good hen! r&t;n::e Siorv burning

, and lower dielectric loss

:iiliiier sof’rr.rlii,g tempcraturc

Knobs Tool handles Packaging Photographic film

spools Signal lenses Drafting instruments

Spectacle frames Safety glass interlayers French curves Drawing instruments

Optical frames Safety goggles

Packaging Sound recordtng Photographic

-

Aceloid Celluloid Cinelin Kodaloid Lusteroid Nilron Nixon Cn Pyralin Xylonite

Celadex Forticel Tenite propionate

Kodapak IV

cu

PLASTICS USED IN INSTRUMENTS INDWSTRY, THERMOPLASTIC MATERIALS

SL so. (I)

8

9

Chlorinated polyether

Ethyl cellulose

FORMS

A\-AtLABLE ‘3)

Rod Tube Sheet Granules Fine powder

plt\‘SIC.\L ~~IIhR.\C.L.F,H!STiCS

i4;

.i tough, straw-tinted creamy translucent m..rerial, in its natural form, natural tan and few restricted colours

Specific gravity 1.4 \:‘ater absorption o-0.1 Tensile strength 42.2 Compressive strength Impact strength 3; Thermal expansion 6.6-8.2 x 10-s Injection moulding temperature 200-240 Dielectric strength 1580 Refractive index -

Inflammability Self-extinguishing An unusual combination of mechanical, electrical and chemical-resistance properties

that makes it possible to fabricate parts which remain extremely stable under severe service conditions, semi-flexible in thin section

Rod Tube

Transparent, translucent and opaque colours

Sheet Film Powder

Specific gravity 1’1-1.17 M’ater absorption 0.7-1.9 Tensile strength 2 1.1-56.2 Compressive strength 70.3-105.5 Thermal expansion 10-15x 10-s Injection moulding temperature 150-220 Dielectric strength 8.70-15.80 Refractive index 1.47 Inflammability Slow burning

Varied degrees of flexibility, excellent dimensional stability, resistance to heat and weather, resistance to alkalis, high surface gloss

10 IFI uorocarbons Granules Powder Rod Sheet Tape Film Solution

Generally available in natural colour only but can be pigmented if required PTFE PTFCE FEP Fluorohalo-

carbon Specific gravity 2.14-2.2 2.1 2.14-2.17 2.1-2.16 Water absorption Nil Nil 0.01 Nil Tensile strength 10.5-28 1 32.3-40 1 19.0-2 1.8 30.2-35.1 Compressive strength 10.5-12.6 225.0-562.5 - 3 1.6-52.7 1:npact strength 4.0-6 0 1.6-4.9 No break 6.4-36.3 Thermal expansion 5.5-10 X IO-” 4 5-7x 1OV 8 Injection moulding 360-400 225-300 3-lO5x_lOO~

4.77-7.2 x 10-s -

temperature Refractive index 1.35 1,425 1.338 Dielectric strength 15.80-19.70 20.90-23.60 19 70-23.60 18.5-19.; Inflammability < Nonflammable Greater workmg temperature range than others, unsurpassed chemical resistancz,

self-lubricating nonsticking properties, very low friction. excellent electrtcal

POSSIBLP. APPLICATIOKS

(5)

COMMON TRADE NAMEs

(6)

Precision machine gears

Pins Bushings Linings Coatings

Tool handles Coatings Lacquers Packaging Containers

Penton Solpolen

Cellophane* Diophane* Ethocel Ethulon Hercocel E Inceloid E Nion EC Sicophane+ Tro;it

Electrical insulation Tapes and films Bearings (self-lubricat-

ing) Piston rings Coil formen Gaskets Diaphragms Nonstick coatings

PTFE

Algoflon Fluon Halon Sereflon Teflon

PZFCE

Hostaflon - C Kel - F

FEP

Teflon Fep

Fluorohalocarbon

Halon

w

I

11

-iii--

13

Polyamide(nylon)

Polycarbonates

Polyethylene(high densityabove 0.940)

RodTubeFilmGranulesFine powderFibreSolution

RodTubeSheet ~Film

RodTubeSheetBlockFilmGranulesFme powderFoamFabric

Natural and opaque (translucent in thin sections) I Spectacle frames

‘Tw 6 T* 6.6 - Type 6.10 T* 11 Ty@ 12Specifie gravity 1.13 1.14 1.09 1.04-1.05 1.01-1.02Water absorption 1.6-3 0.33-0.4 0.3;:::Tensile strength

0.25703 70.3 -8:.: 499-59.8 49-56

Compressive 492-91.4 49.2 -91.4 — — —stre;gth

Impact strength 1.4-3,4 1.2-27 0.8-2.7 9.5Thermal expansion 5X 10-6 5.5 x 10-6

2.7-7.45.5X 10+ 6x 10-5 10.4x 10-6

Injection moulding 225-280 275-300 235-255 220-250 180-270

B;arings(self-lubricating)

KnobsShock absorbing

systemSilent running gearsCoil formersWashersChain linksr.f?ars

temperature ------Coatings

Dielectric strength 130-15.80 13.80-1970 13.80-1580 8.70 1780 CamsRefractive index — 1,53 — 1.52Inflammability +—

— BearingsSelf+xtirlgukhing ——+ Electrical insulation

Types 6,6.6,6.10,’ and 11 — High mechanical strength, resistance to abrasion andheat, self-lubricating, flexible in thin sections

Type12– Low water absorption and low shrinbge

Transparent and a limited range of translucent and opaque colours, clear or slighttint in natural form

Specific gravity 1.2-122Water absorptionTensile strength

02-0.356.2-73.8

Compremive strength 724-75.9Impact strengthThcrmrd expansion

2“7-406-7 X 10-5

Injection moukiing temperature 275-315Dielectric strength 1580-17.30Refractive index 1.586Inflammability Self-extinguishing

High gloss, resistance to weathering

Natural, semitranslucent and opaque colour

Specific gravityWater absorptionTensile Strength

Compressive strengthImpact strex@Thermal expansionInjection mouldmg temperatureDielectric strengthRefractive indexIntlammabllity

0.94109650.01

21.1 -35.1190-25.3

1.44.311-13X lo-f’

200-27518.90-21.70

1.54Slow burning

Crisp, harder surface, higher softening points, greater resistance to stress cracking andpermeation, lower absorption of certain organic solvents

Electronic componentsLensesInsulationPhotography

Cable insulationHandlesMachinery coversCrates and boxesCoatingsAdhesive tapes

Ty)e 6AkulonDurethanGrilonMaranylSniamideUltrarnid BTyf%6.6MaranylNylon ApUltramid AZytelType 6.10MaranylNylon CpTechnylUltramidZytelT* 11RilsanT~ 12Rilsan-AVestamid

LexanMalerolenMarionPolycarbafil

AmeripcdBakelite polyethyleneCarlona polyethyleneCatalin polyethyleneDow polyethyleneElrex polyethyleneFortiflexGrexHit%HostalenLupolenMarlexNasteneOsnalen-HRegidcxRholeneShell polyethyleneSuper dylanTenite polyethyleneVestolen-A

-_—_ & -,._.. . . . .. L__,_._, ----

&.& .J4A..

-—. -.- —.— —.—~_-. ._.=..--. . . - . . . .._..——.—.—

%0.(1)

14

%-

_ir

~A’TkKALS

(2)

Polyethylene(1OWdensityUp to 0.925and medium$m&:ofrorn

o&O)

Polymethylmetbacrylate(acrylic)

APPENDIX A—Contd(Clauses9.3, 10.1 and 13.1)

PLASTICS USEI) IN INSTRUMENTS INDUSTRY, THERMOPLASTIC MATERIALS

FO:W 4AVAUABLE

(3)

RodTubeSheetBlockFilmGramhFine powderFoamFibreFabricSolution

RodTubeSheetFilmGranulesBlockFme powderPolymerBeadFibreEmulsionOrganic solutiorResin

RodTubeSheetFilmFoilGranulesFine powderFabric

PHYSICALCHAHAGTERISTICS I POSSIBLEAPPLICATIONS

(4) I (5)1

FJZfiiiiern@anslucent and opaque colours

Specific gravityWater absorption

0“915-09400.01

Electrical componentsChemical apparatusHandlesGaskets

Tensile stren~thImpact strength

70-21.1 Coatings

Thermal expansion2.7-27.2 Adhesive tapes

10-20 x 10-6 Electrical insulationsfi.~tion moulding temperature 200-275DkkCtric Strengti- - 1970-3940Refractive index 1.51-1.52Inflammability S1OWburning

Fl&ble,. soft easily.marked surface, ex:ellent resistance to ageing, weathering, hotwater and chermcds, ease of mouldmg, unsurpassed electrical properties, gooddimensional stability, nontoxic

Transparent and all colours in translucent and opaqueSpecific gravity 1.14-118Water absorption 02-0.3Tensile strength 31.5-808Compressive strength 84.3-105.5Impact strengthThermal expansion

0.34-3.43-8 x 10-$

Injection mouldmg temperature 170-280Dielectric strength 15.80-1970Refractive index 1.47Inflammability S1OWburning

High surface gloss, semibrittle in high impact grades, superior clearness, resistanceto water and weathering conditions, dimensional :tabiMy, ease of machining,good heat and chemical resstance, exceptional optical properties

Instrument C2iSCS

Wind screensFrench curvesFl:;;:~t lighting

Surgical instrumentsScakxLensesProtractor and set

squaresDial and panelsGlazingFibre optics

Natural, semitranslucent and opaque coloursSpecific gravity

Packaging0.90-0.91 Carrying cases

Water absorption 0.01-0.03 Cable and wireTensile strength 281-36.6Compressive strength

covering598-77.3 Electronic components

Impact strength 068-&7Thermal rxuansion 8.5-11 X 10-sInjection m-oulding temperature 200-300Dielectric strength 30.3-32.30Refractive index 1.49Inflammability S1OWburning

Lightest thermoplastic material, high melting point, excellent electrical properties,high surface gloss, superior stress-cracking resistance, higher stiffness and heatresistance, lower shrinkage and distortion, high elongation properties

COMMONTRADENAMES

(6)

AkwhonAlkatheneBakeliteDow (polyethylene)DylanElrexEpoknFerteneFortifleRLupolenMarlexOsnalen-IPetrothenePlastyleneRibleneStamylanTelcotheneTeniteTrolenVestolene-A

AcryleteDiakonImplexKaliodocLuciteOroglasPelapexPlexiglasPlcxigumVedrilZerlon

Carlona-PCatalin polypropyleElrex polypropyleGering-PPHerculonHostalen PPLuparenMoplenOleformOsnalen-IVPoly-ProProfaxPropatheneShell-polypropyle

,,

.

Is:

707s-1973

A P P E N D I X A -- Contd (Clauszs 9.3, 10.1 and 13.1)

PLASTICS USED IN INSTRUMENTS INDUSTRY, THERMOPLASTIC MATERIALS

21

Polyvinyl chloride (unplasticizcd, rigid :uld flexible)

Polyvinylidene chloride (Saran)

1 I

-i

PHYSICAI. CHAR.~CTLRISTICS

(4)

‘1 rarisp.ircllt .rrtd all colourr in translucent and opaque inc!uding metallics

Spr< iI;< gra\ itv 1.20-1.45 \\‘.rrer .rbsorprlun 0.1-1.0 Trnzilr strength 10.5-70.3 (:or;;prc~ive strength 70.3-91.1 lmpa,t strength 0.53-2.7 TIlerma expansion 7-25 ‘Y 10-s Injection moulding temperature 120-160 Dielectric strength 13.80-19.70 Refractive index 1.52-1.55 Irlfiammnbility \‘er! slo\\ burning to nonflammable

Dimensional stability, resistance to weathering conditions, resistance to abrasion and chemical action, clearness, ease of moulding, odourless, and tasteless, rigidity and varying flexibility

Emulsion Lacquers Tube Pipe Sheet Film Filament

White, odourless, tasteless and nontoxic Specific gravity 1.67 Water absorption 0.12 Tensile strength 28.1-49.2 Compressive strength 31.6-59.8 Impact strength 2.7-l I.0 Thermal expansion 16-19 < 10-j Dielectric strength 11.80-15.80 Refractive index 1.60-1.63 Inflammability \‘ery difficult to ignite, self-extinguishing

High impact strength, toughness and durability. excellent weather, chemical and electrical resistance

POSSIBLE APPLICATIONS

(3)

French curves Protractors set squares Printing plates Sealing rings Packaging fume ducts Electrical insulation Safety qlass interlayers

COMMON TRADE NAMES

03

Astradur Benvic Bony1 Breon -- PVC Carina Corex Corvic E&m;; - PVC

Geon -- PVC Hostalit Lucolene Lucorex Lutofan Marvin01 Mip0lam Nwan ten Opalon Plastovac - P Pliovic Ravinil Sicron So&c Trovidur Vestolit Vestoran Villit Vinatex Vinoflex Vipla Viplast Vybac Vygen Vynco

Xz

Coatings Packaging foils Containers Window screws

Geon Ixan Kurofan S&an

APPENDIX B(Clauses 9.3, 10.2 and 13.1)

‘H-IEIWK)SEITFNG WYH3itIAIiS

,

w

MATERIAL FORMS PHVSICAL CHARAGTERISTIGS POSSIBLEAPPLICATIONSl%. AVAILABLE

COMMON TRADE

(1) (2) (3) (4)NAMES

(5) (6)

1 Alkyd Mouldk?g Natural and certain basic opaque cokmrs Electritxd applications *m---materials Components where Aroplaz

Resins Specific gravity 1.8-2.5Granules Water absorption

fkst moulding Aquaplcx0.05-0.25

Tensile strengthcycles are desired Bakelite

21.0-70.0Compressive strength

Coatings126.5-176.0

Ih&tllcyd (resins)

Impact strengthFiniihcs for metals

0.17-1.2 ErirdteMouldlng temperature 140-220 PlazkonThermal expansion 1-5 x 10-6 SoalkydDielectric strength 7.10-12.60 SynolacInflammability Very slow burning to self-extinguishing Synre.sates (resins)

Hard, rigid material, good electrical properties, resistance to heat. water and mostorganic solvents

2 Epoxy rezins Solid Golden brown in natural form, but maybe dyed or pigmented(epoxide) viscous

Insulations AralditeBzkelite epoxide

Liquid Specific gravity 1.15-2.1Coatings

Powder Water absorptionRectifiers D.E.R.

0.07-0.15 EpikoteTensile strength 14-420

Transformers

Gompresive strength.Jigs and fixtures Epotug

84.5-210 EponImpact strength 0.34-13.5

PatternsLekutherin

Thermal expansion l-lox 10-~Printed circuits

Moukiing temperatureReinforced plastic Maraglas

20-200 MarasetDielectric strength 7.90-19.70

mould@gsMaree

Inliammability Slow burning to. self-extinguishingElectronic componentsAdhesivez for glass, Petrox

Good ebernical resistance and exceptional adhesion to metalsmetal and wood

Y- Melarnine Powder Translucent and opaque cdoursformaldehyde Resins

Laminates Cymel

(melamine) Specific gravityAdhesives Isomine

1.4-1.95 LacquersWater absorption .

Keramin0.08-0.60 Electrical instruments,

Tensile strengthLamelite

28.1 -77.3 parts and housing MeformCompressive strength 175.8-281.0Impact strength

Mel brite0.17-0.4 Melerex

Moulding temperature 120-160Thermal expansion

Melmac2.0-4.5 X 10-5

Dielectric strength 2.40-9.90Melmex

InflammabilityMelolam

Nonflammable Melopas

Good electrical properties, high resistance to heat, hot water and chemicals; highMepalMelurac

surface gloss MeluritResloomUltrapas

.-. . .L

( Gont:nued )

—...——

A&t&l ..’-

““-’““––’-==%

.,i.-.

,. z

.

SLNo.(1)

4

5

APPENDIX B—Contd(Clauses 9.3, 10.2 and 13.1)

THERMOSETTING MATERIALS

MATERIAL

(2)

Phenolic (phenolformaldehyde)

Polyester

FORMSAVAILMMX

(3)

RodTubePowderFoamResins

FilmFoamFibreResin

PHYSICAL CHARACTERISTICS

(4)

Available in black? brown, maroon, gretn, blue and other natural CO1OUXSin darkershades. Cast resrns: all colours

Specific gravityWater absorptionTensile strengthCompressive strengthImpact strengthThermal expansionMoulding temperatureDielectric strengthRefractive indexInflammability

1-32-1”42001-1”3042”2-633

175r8-281°2017-03

2-.5-7.5x 10-s140-1702-0-991“5-1”7

Very slow burning

Durability; resistance to heat, water, solvents and chemicals; electrical properties;ease of moulding and machining; clearness; brittle in thin section; dimensionalstability

Varies from clear to medium brown or yellow colour in natural form. It may also bedyed or pigmented

Specific gravity 1“06-2-9Water absorption oo7-@5Tensile strength 21-492Compressive strength Io:j; ; 13!Impact strengthThermal ex~ansion 1“5-40 X-l;-sMoulding t~mperature 10-16O”CDielectric strength 390-17”70Inflammability Very slow burning

~ood heat resistance, films are transparent and flexible having good electricalproperties

I.

--- A

POSSIBLEAPPLICATIONS

(5)

CabinetsE&o~l fittings

HandlesCamerasInsulationsPackagingWood bondingAdhesivesCovers for electrical

instruments

Surface coatingAdhesivesPackagingAntenna mastsReinforced plasticsCorrosion resistance

tanks, pipes, etcElectrical appliancesPlotting of electronic

circuits

cOWdON TRADENAMES

(6)

BakeliteCatalin (cast resins)CatamotddCatanamCataplasCatasetCegeiteCellobondDurez-phenolEloEpokFluociteKauresinKeritMouldrite-phenol

(resins)Nestory:cs:)

PhenorezPhenorinPhilitePlencoResinoxRockiteSterniteSynmoldTrnlitan

BakeliteBeetleCrystieEstalFilabondGebrasterGlidpolHetronHklk$t:hane

KeripolLarnmaeMareaMelinexMylarNosnndyn*on

“

9

.

0

a

IS:7078-1973

15

Bureau of Indian Standards

BIS is a statutory institution established under the Bureau ofhdian Standards Act, 1986 to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country.

Copyright

BIS has the copyright of all its publications. No part of these publications may be reproduced in any form without the prior permission in writing of BIS. This does not preclude the free use, in the course of implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to copyright be addressed to the Director (Publications), BIS.

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of ‘BIS Handbook’ and ‘Standards Monthly Additions’.

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

BUREAU OF INDIAN STANDARDS

Headquarters:

Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002 Telegrams : Manaksanstha Telephones : 323 0131,323 83 75,323 94 02 (Common to all offices)

Regional Offices : Telephone

Central : Manak Bhavan, 9 Bahadur Shah Zafar Marg NEW DELHI 110002 1

323 76 17 323 45 41

Eastern : l/14 C. IT. Scheme VII M, V. I. P. Road, Maniktola CALCUTTA 700054 {

37 84 99,37 85 61 37 86 26,37 9120

Northern : SC0 335336, Sector 34-A, CHANDIGARH 160022

{

60 38 43 60 20 25

Southern : C. I. T. Campus, IV Cross Road, MADRAS 600113

Western : h/lanakalaya, E9 MIDC, Marol, Andhcri (East) BOMBAY 400093

Branches : AI-IMADABAD. BANGALORE. BHOPAL. BHUBANESHWAR. COIMBATORE. FARIDABAD. GHAZIABAD. GUWAHATI. HYDERABAD. JAIPUR. KANPUR. LUCKNOW. PATNA. THIRUVANANTHAPURAM.

{

235 02 16,235 04 42 235 15 19,235 23 15

832 92 95,832 78 58 832 78 91,832 78 92

Printed at Simco Printing Press, Delhi