09-SAMSS-091

Previous Issue: 30 March 2005 Next Planned Update: 15 October 2016 Page 1 of 1

Primary contact: MANA H. AL-MANSOUR on 966-3- 8809557

Materials System Specification

09-SAMSS-091 15 October 2011

Qualification Requirements for Shop-Applied Internal FBE Coatings

Document Responsibility: Paints and Coatings Standards Committee

Saudi Aramco DeskTop Standards

Table of Contents

1 Scope............................................................. 2 2 Conflicts and Deviations................................ 2 3 References..................................................... 2 4 Definitions...................................................... 3 5 Material.......................................................... 4 6 Handling of Pipe............................................ 6 7 Cleaning and Surface Preparation................. 6 8 Coating Application........................................ 7 9 Quality Requirements.................................... 9 10 Inspection Requirements............................... 9 11 Recheck on Coating Material Qualities........ 15 12 Repairs......................................................... 15 13 Pipe Storage and Preparation for Shipment.............................................. 16 Appendix A - Qualification Procedure for Initial Product Approval................................ 17

Document Responsibility: Paints and Coatings Standards Committee 09-SAMSS-091

Issue Date: 15 October 2011 Qualification Requirements

Next Planned Update: 15 October 2016 for Shop-Applied Internal FBE Coatings

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1 Scope

1.1 This specification defines the minimum mandatory requirements of shop-applied

fusion bonded epoxy FBE powder coating systems for the internal surfaces of

steel tubular products and associated fittings and couplings.

1.2 Unless stated otherwise in the Purchase Order, pieces coated in accordance with

this specification shall be suitable for continuous service at 3000 psig pressure

and for exposure to hydro-testing at 5575 psig.

1.3 Information Required with the Quotation

1.3.1 Cost if burn-off is required to remove oily contaminants from the

surface prior to blast cleaning (see paragraph 7.1).

1.3.2 Procedure of the field girth weld internal coating application, quality

control, and coating defects repair.

2 Conflicts and Deviations

2.1 Any conflicts between this specification and other Saudi Aramco Materials

System Specifications (SAMSSs), Engineering Standards (SAESs), Standard

Drawings (SASDs), or industry standards, codes and forms shall be resolved in

writing by the Company or Buyer Representative through the Manager,

Consulting Services Department of Saudi Aramco, Dhahran.

2.2 Direct all requests to deviate from this specification in writing to the Company

or Buyer Representative, who shall follow internal company procedure SAEP-

302 and forward such requests to the Manager, Consulting Services Department

of Saudi Aramco, Dhahran.

3 References

Referenced standards and specifications shall be the latest edition, revision or

addendum in effect on the date of the purchase order, unless stated otherwise.

3.1 Saudi Aramco Documents

Saudi Aramco Engineering Procedure

SAEP-302 Instructions for Obtaining a Waiver of a

Mandatory Saudi Aramco Engineering

Requirement

Saudi Aramco Engineering Standards

SAES-H-002 Internal & External Coatings for Steel Pipelines

& Piping

SAES-H-100 Appendix I "Qualification Procedure for Sand for

Abrasive Blasting"

Saudi Aramco Materials System Specification

http://standards/docs/Saep/PDF/SAEP-302.PDF



http://standards/docs/Saes/PDF/SAES-H-002.PDF





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01-SAMSS-024 Pipe Handling and Nesting

Saudi Aramco Inspection Requirement

Form 175-091300 Saudi Aramco Inspection Requirements

3.2 Industry Codes and Standards

The Society for Protective Coatings

SSPC PA 2 Measurement of Dry Coating Thickness with

Magnetic Gages

SSPC SP 1 Solvent Cleaning

SSPC SP 5 White Metal Blast

International Organization of Standardization

ISO 8501-1/SIS Pictorial Surface Preparation

[SS 05 59 00 (1988)] Standard for Painting Steel Surfaces

4 Definitions

Buyer: Saudi Aramco Purchasing Department representative.

RSA: Responsible Standardization Agency representative - Coating Engineer

designated by the Manager, Consulting Services Department. He is responsible for

product approvals and for interpretation of this specification.

Buyer's Representative: The person or persons designated by the Purchasing

Department to monitor / enforce the contract. Normally, this is the on-site inspector.

Manufacturer: Company which manufactures the required powder coatings.

Vendor: FBE coating applicator.

Pipe: For purposes of this specification "pipe" is used to refer to steel tubular,

including line pipe and OCTG casing and tubing.

Custom Coated Pieces: All pieces not coated by automated in-plant equipment.

Generally, short spools and fittings are less than 12 meter.

Fitting: For purposes of this specification, "fitting" is used to refer to any custom

coated piece including valves and pumps.

Corrosive Service: Generally, everything except treated seawater and refined

products.

Non-Corrosive Service: Treated Seawater or Refined Products.

DFT: Dry film thickness.

FBE: Fusion bond epoxy coating.

http://standards/docs/Samss/PDF/01-SAMSS-024.PDF




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High Temperature FBE: FBE powder that have a Tg > 105 and shall stand operating

temperatures up to 125ºC.

5 Material

5.1 FBE Internal Coating

5.1.1 Material for the shop-applied internal coating shall be in a form of

thermosetting resin powder suitable for application by the fusion bond

process, with or without primer, as tested and approved by Saudi

Aramco, and applied according to the Manufacturer's recommendation.

5.1.2 Use of reclaimed powder shall not exceed the Manufacturer's

recommendation. In no cases shall such use be greater than a

maximum of 10% by weight without written approval from the RSA.

If the reclaimed powder found contaminated at the end of the

production, reclaimed powder shall be stopped.

5.1.3 The Vendor should select any of the Buyer approved products. Equal

alternative products which are not in Saudi Aramco approved list must

be agreed upon by the Buyer in writing.

5.1.4 Proposed alternative coating powders must pass the relevant

qualification tests outlined in Appendix A of this specification and any

other qualification tests deemed necessary by the Buyer or the RSA.

5.1.5 Powder coating materials supplied to the Vendor shall be marked and

supplied with the following information:

a) The Manufacturer's name

b) The material identification number

c) The batch number

d) Date of manufacture

e) The shelf life and storage temperature limits

f) The material identification fingerprints from the FBE

Manufacturer certified by a third party individual laboratory.

5.1.6 The Vendor shall retain samples of each powder batch for a period of 2

years. The sample shall be of sufficient size to run duplicates for the

following tests if required:

a) Instrumental Analyses for identification, IR and DSC

b) Gel Time

c) Moisture Content

d) Bend tests




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e) Autoclave tests.

5.1.7 Coating material shall be stored and handled in accordance with the

coating Manufacturer's recommendations.

5.2 Repair Material

Touch-up or repairs shall be made with FBE or other Saudi Aramco-approved

materials tested in accordance with, and meeting the applicable requirements of,

Appendix A of this specification. Touch-up material shall also be approved by

the Manufacturer. Repair and/or touch-up material shall be tested for adhesion,

hardness and autoclave performance. Repair materials shall be marked with the

information in paragraph 5.1.5.

5.3 Blast Abrasives

5.3.1 Abrasives for blast cleaning shall have less than 100 PPM sulfates and

less than 100 PPM chlorides. They shall be of a particle size that will

produce a clean, angular surface profile as specified in paragraph 7.4 of

this specification. The abrasives shall be stored in a dry condition and

kept dry during use. Sand is prohibited as an abrasive for pre-cleaning,

cleaning, and all other abrasive blasting processes.

5.3.2 The Vendor shall furnish a chemical analysis for all batches of

abrasives to verify compliance with the requirements in paragraph

5.3.1.

5.3.3 The use of reclaimed non-metallic abrasives shall be according to the

manufacturer's recommendation.

6 Handling of Pipe

6.1 Suitable equipment for handling, unloading and temporary storage of bare pipe

shall be used to avoid any damage to bare pipe or pipe ends, or obliteration of

necessary pipe markings.

6.2 The stacking height of bare pipe shall be limited by the requirements of

01-SAMSS-024.

6.3 Pipe or fittings received in a damaged condition or showing serious defects that

may impair the coating, such as extensive laminations, burrs, gouges, pits, metal

slivers or cold laps, or uneven weld cap or weld irregularity shall be reported to

the Buyer's Representative for disposition. The Vendor shall determine final

disposition due to the coating inability.

6.4 Vendor shall submit his handling, loading, unloading, storage and preparation

for shipment procedures for pipe and fittings for Saudi Aramco approval to the

Buyer's representative prior to coating.

http://standards/docs/Samss/PDF/01-SAMSS-024.PDF




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7 Cleaning and Surface Preparation

7.1 Prior to abrasive cleaning, all oil, grease and other deleterious materials shall be

removed by solvent cleaning in accordance with SSPC SP 1 or by detergent

washing or steam cleaning. No residue that will affect adhesion shall be left on

the surface.

Oven burn-off at a temperature of 370 - 400ºC may also be employed, if, in the

opinion of the Vendor, this is the only satisfactory method of insuring that the

steel is free of oily contaminants. The reported oily contamination shall be

investigated and confirmed by the Buyer's Representative and written approval

shall be obtained from the Buyer prior to burn-off. All pipe and fittings which

have been received with internal mill varnish or other deleterious coatings or

have been in previous oil service shall always be burned off.

7.2 The pipe or fitting surface temperature shall be at least 3ºC above the dew point

before and during abrasive blasting until the primer application (if required) or

until start up of pre-heating. If preheating is used, it shall be carried out in a

uniform manner to avoid distortion.

7.3 The surface to be coated shall be abrasive cleaned to a "white" metal surface

finish equal to Sa3 as described in ISO 8501-1/SIS SS 05 59 00 (1988) or SSPC

SP 5.

7.4 The anchor profile shall be 50 - 100 micrometers.

7.5 Defects

7.5.1 Weld spatter, rough weld surfaces, and sharp protrusions shall be

ground smooth.

7.5.2 When serious defects such as mentioned in paragraph 6.3 are found

following the abrasive cleaning operation, the affected pipe or fitting

shall be set aside for disposition by the Buyer's Representative.

7.5.3 If these anomalies affect enough of the pipe or fitting to the extent that

the coating process is severely disrupted, the coating process shall be

stopped and the Buyer informed. The Vendor shall advise the Buyer of

any remedial measures that could be taken to achieve an acceptable

coating. The Vendor shall make the final decision, after consultation

with the Buyer's Representative, whether the affected pipe or fittings

can be coated.

7.6 Dew Point readings shall be recorded at the start and every 2 hours during the

blasting operation in the immediate vicinity of the operation. Blasting and

coating operations shall be suspended if the substrate temperature is less than

3ºC above the dew point.

Any metal surface showing evidence of flash rusting shall be re-blasted prior to

coating.




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7.7 Chloride Contamination

7.7.1 The blasted surface of pipes and fittings shall be tested for the presence

of residual chlorides after blasting using a test method that has been

prior-approved in writing by the RSA. Residual chlorides shall be no

greater than 40 mg/m².

7.7.2 Test a random location on the first pipe and/or fitting coated on any

given day. After that, test one pipe joint out of every 50 pipes or 50

fittings.

7.7.3 In the event of a failure, re-test the piece. If it fails the re-test, test all

pieces that were blast cleaned both before and after the contaminated

piece until three in a row pass the test. All pieces coated after the last

good test must be re-blasted, re-tested, and re-coated.

8 Coating Application

8.1 The FBE and its primer coating material shall be applied according to the

Vendor's written application procedure, which incorporates the Manufacturer's

recommendations. The Vendor shall submit his application procedure to the

RSA for Saudi Aramco approval prior to application. Already approved

procedures do not require RSA review and approval on new purchase orders,

unless otherwise it is required by the Buyer's representative or any other

standards documents.

8.2 The coating dry film thickness DFT for pipe joints shall be in the range of 375 to

625 microns (15 – 25 mils) unless otherwise agreed upon in writing by the

Buyer.

8.2.1 For girth weld areas (pipe and custom coated pieces), the allowable

DFT shall be in the range of 375 to 625 microns (15 – 25 mils). The

total dry film thickness in the overlap area between the girth weld

coating and the adjacent coating shall not exceed 1250 microns.

8.2.1.1 For pipes with diameters less than 24" and/or too small to

access the girth weld area, the Vendor shall submit his

proposed procedure for controlling the DFT to the RSA for

written approval, which must be obtained prior to

commencing coating application.

8.2.1.2 The girth weld coating is not required to meet the

acceptance criterion in paragraph 10.7, Bend Test.

8.2.2 Custom coated pieces shall have a nominal DFT of 625 micrometers.

The minimum DFT shall be 375 microns and the maximum DFT on

the coating overlap area shall be 1250 microns, inclusive of girth welds

and repair areas larger than 645 mm² (see paragraph 10.6.8.).




Page 8 of 18

Within 15 cm from a butt-welding end, the maximum DFT shall be

625 microns to allow field coating of the girth weld without exceeding

1250 microns DFT in the coating overlap area.

8.3 Line pipe and ancillary piping products for subsequent welding shall have a cut-

back at each end in the range of 50 to 75 mm measured from the end of pipe

unless otherwise specified. In the case of fittings 6" diameter or less, the

cutback range of 25 to 50 mm.

The internal root reinforcement shall be 2.5 mm or less, as per SAES-W-012,

paragraph 16.6.5.

8.4 The range of acceptable shades of color shall be established prior to production

coating. The color and gloss of the cured coating shall be within the approved

range and the cured coating shall be free of blisters and fish eyes as defined in

SSPC Vol. 1. Cosmetic sags, runs, and other non-injurious irregularities are

acceptable as long as the total DFT does not exceed 1250 microns.

8.5 Pipe or fittings which have been primed and waiting for FBE coating application

must be covered to be protected against any dirt or other deleterious materials

and not to be hold more than 12 hours for FBE coating application. For pipes

and fittings, the final curing process of the FBE coated items must begin within

two hours of the FBE application.

8.6 Custom coated fittings are subject to a size limit of maximum 36" diameter and

10 feet in length. For pieces larger than this, the Vendor must have a written

approval from the RSA prior to coating application.

9 Quality Requirements

The Vendor's quality assurance system during the coating application shall include the

following as minimum requirements:

a) Checking cleanliness of pipe and/or fittings immediately prior to blasting (see

paragraph 7.1).

b) Monitoring of size, shape, dryness and cleanliness of the blasting material and

process (see paragraph 5.3).

c) Checking visually, in good light, the inner surface for metal defects, dust and

surface debris (see paragraph 7.5). If blasting and primer applications are taking

place on the same vicinity, Primer application shall be stopped while blasting is in

progress.

d) Checking blasted surface profile (see paragraph 7.4).

e) Checking temperature control of the surface (see paragraph 7.2).

f) Checking thickness of cured coating (see paragraph 10.4).

g) Checking on the coating adhesion properties (see paragraph 10.5).




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h) Holiday detection of 100% of the surface area of all pipes and fittings (see

paragraph 10.6).

i) Supervision of adequate and proper repair of all defects.

j) Checking of coating color, appearance and uniformity (see paragraph 8.4).

k) Cure Test - See paragraph 10.8.

10 Inspection Requirements

10.1 Notice

The Vendor shall notify the Buyer not less than 5 days in advance of the start of

each production run. The Vendor shall provide the Buyer's Representative with

a detailed time schedule to allow him to witness or monitor all processing and

testing phases.

10.2 Responsibility for Inspection

10.2.1 The Vendor shall be responsible for all quality control checking

including visual inspection, thickness measurements, and holiday

testing, and shall keep records on the results of all such inspections in a

form suitable to the Buyer's Representative.

10.2.2 Pipe coated in accordance with this specification is subject to

verification by the Buyer's Representative per Saudi Aramco Form

175-091300, "Inspection Requirements", attached to the Purchase

Order. The Buyer's Representative shall have access to each part of the

process, and shall have the right to witness the quality control tests

and/or perform tests by himself on a random sampling basis.

10.2.3 The Buyer's Representative shall have the right to halt the application

requesting alterations or corrections to the process in order to correct

all faults found in the work, which conforms to this specification.

Commentary Note:

Quality control on custom coated pieces (including valves) has proven to be difficult. For applications where internal coating failures could have serious operational impact, the Proponent should consider providing his own (or third-party) full-time inspection coverage in addition to the requirements of this specification.

10.3 Visual Inspection

The internal surfaces being coated shall be inspected visually at each stage of

the operation, using suitable illumination and inspection tools with sufficient

frequency to ensure full compliance with the requirements of this specification.

10.4 Thickness Test




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Every pipe and fitting shall be checked in accordance with SSPC PA 2 at each

end using a non-destructive type of thickness gauge which has been calibrated as

required in paragraph 10.9.1. All results shall be as specified in paragraph 8.2

and shall be recorded.

10.5 Adhesion Test

10.5.1 General Requirements

10.5.1.1 For pipe, determine the adhesion of the coating at one

location for each of the following cases:

a) The first production joint,

b) The first joint after any interruption in production, and

c) Once every hour or every twenty pipe lengths,

whichever is more frequent.

If 3 tests have been successful, the test frequency may be

reduced to once every 2 hours or 50 pipe lengths.

10.5.1.2 For custom coated pieces test one sample per production

lot.

10.5.1.3 Failure of the adhesion test shall require lot narrowing by

testing the pipes or fittings until three in a row (coated both

before and after the piece that failed) show satisfactory

adhesion. A lot is defined as one shift's production, except

in the case of custom coated pieces where a lot is defined as

any number of pieces processed through the custom coating

oven at the same time.

10.5.1.4 The weld cutback on selected pipe lengths or fittings (see

paragraph 8.3) shall be left partly unmasked to facilitate the

adhesion test. The unmasked area shall be cleaned of

coating following the test. Where this procedure is not

practical, the test may be conducted on a selected area of

the coating, and the test area be repaired in accordance with

paragraph 12 of this specification.

10.5.2 Adhesion Test Procedure

10.5.2.1 With a sharp, narrow bladed knife, two incisions

(approximately 13 mm long) shall be made, in the form of

an X, through to the metal substrate.

10.5.2.2 At the intersection of the X, an attempt shall be made to

force the coating from the steel substrate with the knife

point. The point of the knife shall be inserted horizontally

i.e., the flat of the blade under the coating at the point of




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intersection of the X such that the blade point is on the

metal surface. Using a levering action, the flat point shall

be forced away from the steel in an attempt to pry off the

coating. Refusal of the coating to disband from the

substrate shall be recorded as a "pass". A "pass" shall also

be recorded where the coating fails cohesively. Partial or

complete adhesive failure between the coating and the

substrate shall be recorded as a failure. Disbondment at the

point of the intersection is common due to the action of

marking the 'X' cut. Therefore, for 1 mm away from the tip

of the intersection any disbondment shall be ignored.

10.5.2.3 The pipe shall be allowed to cool to below 80°C prior to

conducting the adhesion test. Failure of the test shall

require each piece coated on that day to be subjected to the

test until a total of three tests in a row (three done both

before and after the piece which failed) are satisfactory.

10.6 Holiday Detection

10.6.1 100% of the internally coated surface area of the pipe shall be tested

with a hot spark, pulse-type DC holiday detector employing an audible

signaling device. The electrode used for locating holidays shall be

designed to ensure direct contact with the coating (with no visible

gaps).

10.6.2 Travel rate of the detector electrode shall not exceed 75 cm/sec. The

electrode shall not be allowed to remain stationary while the power is

on.

10.6.3 The holiday test voltage of the hot spark detector shall be 125 volts DC

per 25 micrometers of maximum coating thickness. However, to

eliminate the need for continual adjustment during shop production, a

maximum voltage of 2200 volts ± 50 volts shall be used for coating

thickness in the range from 375 to 625 micrometers and a maximum

voltage of 1300 volts ± 50 volts shall be used for coating thickness in

the range from 225 to 475 micrometers.

10.6.4 All holidays in pipe coated above 24" diameter shall be repaired. The

maximum number allowed for repair is 20 holidays. They shall be

holiday free when re-tested after repair in accordance with paragraph

12.3. If the number is excessive than 20 holidays, the pipe joint shall

be rejected.

10.6.5 The number of holidays in a pipe joint with diameters up to 20" shall

be permitted a maximum of 4 holidays per 12.2 m length. Repair if

these holidays are accessible, otherwise leave them unrepaired and




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inform the Buyer's representative and log it in the quality control

document.

10.6.6 Internal girth weld coatings on the double-joints pipe shall be tested in

accordance with the following:

10.6.6.1 Pipe diameters equal and greater than 24": All holidays

shall be repaired. The coating on the girth weld area shall

be holiday free when tested in accordance with paragraph

12.3. There is no limitation on the number of holidays that

can be repaired (see paragraph 12.4).

10.6.6.2 Pipe diameters less than 24", but large enough to allow

visual inspection of the girth weld area coating by remote

controlled crawling equipment; holiday(s) shall be marked

and repaired. Otherwise, the coating shall be rejected.

10.6.6.3 Pipe diameters too small (less than 6") to allow visual

inspection of the girth weld area coating: The holiday test

shall be made and the presence of holiday(s) shall be

recorded for information purposes only.

10.6.7 Custom coated fittings shall be free of holidays when tested in

accordance with paragraph 10.6 of this specification.

10.6.8 The total dry film thickness of coating in repaired areas shall not

exceed 1250 microns for repair areas exceeding 645 mm² and 1875

microns for repair areas less than or equal to 645 mm².

10.7 Bend Test

10.7.1 Once per shift (or, for pipe, every one hundred pipe lengths, whichever

is the more frequent) and at the start of using a new batch of powder

the flexibility of the coating shall be determined by a bend test. The

powder utilized for the test shall be taken from the plant application

fluidizing bed.

10.7.2 Two test bars measuring approximately 25 mm x 192 mm x 9.5 mm

shall be coated at a dry film thickness of 475 - 575 micrometers.

10.7.3 The coating thickness shall be measured at 5 locations 25 mm apart on

each sample, and the thickness recorded. The average of these

readings shall fall in the range in paragraph 10.7.2.

10.7.4 The test bars shall be holiday detected in accordance with paragraph

10.7.7 of this specification, and all holidays marked and recorded.

10.7.5 The specimens shall be at three different temperatures 5, 10, and 25°C

± 3°C when clamped in the bender with the coated side up. The




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specimens shall be bent flat wise at 60 degrees over a 25.4 mm thick

shoe of the following dimensions:

Shoe radius 95.2 mm

Chord 152 mm

Arc 178 mm

10.7.6 Bending shall be accomplished in less than 30 seconds.

10.7.7 The coated specimens shall show no cracks to base metal when

examined at 10X magnification except where gripped or clamped. If

visual examination cannot determine whether a crack extends to base

metal, holiday testing using the hot spark detector method with a

conductive rubber electrode shall be used. Tests are to be carried out

as required in paragraph 10.6.3 of this specification. If no holidays are

signaled, the crack-like defect is acceptable.

10.7.8 If either of the bend tests fail, the tests shall be repeated.

10.7.8.1 If both bend retests are satisfactory, the bend test shall be

accepted.

10.7.8.2 If either (or both) of the retests fail, immediately

discontinue further coating with the suspect batch of

powder and proceed as follows:

a) Pipe: All pipes coated since the previous successful

bend test shall be set aside. Two specimens with the

same dimensions as given in paragraph 10.7.2 shall be

cold cut from the production coated pipes in question

and subjected to the bend test. The edges of the

specimens as necessary shall be chamfered to remove

stress raisers. As many specimens as necessary shall

be tested until the Buyer's Representative is satisfied

that all pipes with substandard coatings have been

identified. These pipes shall be rejected.

b) Fittings: All fittings coated with the suspect powder

shall be re-blasted and recoated.

10.7.9 If deemed necessary in some critical applications or according to an

end-user request, the RSA shall request the Vendor to prepare the Bend

test samples from a coated pipe section. Samples shall be cut in both

radial and longitudinal directions from the pipe section to suit the Bend

test requirements. The procedure of the test shall be as shown above.

10.8 Cure Test




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Twice per shift the coating on production pipes shall be tested by Differential

Scanning Calorimeter analysis. Custom coated fittings shall be subjected to the

same test at a frequency of one sample per production lot. Girth welds shall be

checked twice per day. Failure of the test shall require each piece coated on that

day to be subjected to the test until a total of three tests in a row (three done both

before and after the piece which failed) are satisfactory. The glass transition

difference (Tg2-Tg

1) must be in the range specified by the FBE Manufacturer.

Any coated pipes, girth welds, or fittings fail the test within the acceptable range

shall be re-cured and retested.

10.9 Calibration of Inspection Equipment

10.9.1 The coating thickness gauge (see paragraph 10.4) shall be calibrated in

accordance with SSPC PA 2 at the start of production and every 3

hours during production, against a certified or known standard.

10.9.2 The holiday detector shall be calibrated at least twice per 8-hour shift

against a suitable calibrated voltmeter.

11 Recheck on Coating Material Qualities

The Buyer's Representative at any time may require that the Vendor prepare a set of test

specimens as defined in Appendix A, and arrange for the performance of any or all of

the tests covered by Appendix A at a laboratory agreeable to the Buyer. Provided the

coating on the specimens passes the tests, the Buyer shall pay for the tests; otherwise

the Vendor shall pay the costs.

12 Repairs

12.1 Repair materials shall be as specified under paragraph 5.2 of this specification,

and repairs shall be in accordance with the approved, written procedures.

12.2 Abrasive blasting and patch repair work shall not be conducted when the metal

surface temperature is less than 3ºC above the dew point.

12.3 Repaired areas shall be retested for holidays per paragraph 10.6 and shall be

holiday free.

12.4 Any coated joint with defective or damaged coating exceeding 930 cm² shall be

rejected and completely recoated at the Vendor's expense.

12.5 Custom coated fittings or girth welds with defective or damaged coating

exceeding 233 cm² shall be rejected and recoated at the Vendor's expense.

13 Pipe Storage and Preparation for Shipment

13.1 Each coated length of pipe or fitting shall be externally or internally stenciled to

identify the type of coating applied, coating Purchase Order number, original




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pipe or fitting Purchase Order number (if known), pipe size, pipe grade, fitting

size, fitting class and date coated.

13.1.1 Pipe diameters of 16 inches and less shall be stenciled externally

starting at a point approximately 60 cm from the end. Size permitting,

fittings of these diameters shall be stenciled externally at any

convenient location.

13.1.2 Pipe diameters greater than 16 inches shall be stenciled internally

starting at a point approximately 15 cm from the end. Size permitting;

fittings of these diameters shall be stenciled internally at any

convenient location.

13.1.3 Fittings that cannot be stenciled as required above shall be marked in

accordance with the Buyer's written instructions.

13.2 All pipes shall be stored on polyethylene-sheathed sand berms until time for

delivery. Fittings shall be stored on pallets or padded elevated racks.

13.3 All booms, hooks, forks, supports and skids used in handling or storing coated

pipe shall be designed and maintained in such a manner as to prevent any

damage to the pipe or to the coating, and shall be approved by Buyer's

Representative.

13.4 The Buyer's Representative will have authority to stop any storage procedure or

means of transport from the yard if, in his opinion, there is a possibility of

damage to the coating because of improper procedures.

Revision Summary

30 March 2005 Revised the "Next Planned Update". Reaffirmed the contents of the document, and reissued with minor revisions.

15 October 2011 Editorial revision to remove the committee members list.




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Appendix A – Qualification Procedure for Initial Product Approval

1. General Requirements

In order to qualify a coating material as acceptable under this specification, the

Supplier of the coating material shall submit the following certification in

writing to the Responsible Standardization Agency (RSA):

a) Certification from an independent testing laboratory or inspection agency

that they witnessed or performed the preparation and testing of the

samples, and that all procedures were in accordance with this qualification

procedure.

b) Certification by the Supplier that the proposed coating meets the following

criteria:

- Has passed all the tests and met all the requirements of this

qualification procedure.

- Is suitable for the intended service conditions as detailed in Saudi

Aramco Engineering Standard SAES-H-002, APCS-102 "Shop or

Field-applied Fusion Bonded Epoxy (Internal)".

c) A record of all test results:

Any and all initial qualification tests shall be carried out at no cost to Saudi

Aramco. The RSA shall decide if the data presented by the Supplier

satisfy the requirements of the tests outlined below.

2. References

2.1 Saudi Aramco Engineering Standard

SAES-H-002 Internal and External Coating for Steel Pipelines

and Piping

2.2 Industry Codes and Standards

ASTM D714 Evaluating the Degree of Blistering of Paints

ASTM D4541 Pull Off Strength of Coatings

ISO 8501-1/ Pictorial Surface Preparation Standard For

SIS SS 05 59 00 Painting Steel Surfaces (1988)

3. Qualification Tests

3.1 Instrumental Analysis

Instrumental analyses of the coating powder and its primer shall be

conducted by the infrared (IR) approved method, and FBE differential






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scanning calorimetric (DSC) analysis. Both tests shall be conducted in a

laboratory acceptable to the RSA.

3.2 Preparation of Test Specimens

3.2.1 Test specimens shall be as outlined in the applicable test

specification unless otherwise stated.

3.2.2 Surface preparation, application, dry film thickness and curing

parameters for the test specimens shall be identical to that used

in this coating specification.

3.3 Flexibility/Bending Test

Three (3) test specimens as detailed in paragraph 10.7.2 of this

specification shall be tested and evaluated in accordance with paragraphs

10.7.3 through 10.7.7 of this specification.

3.4 Adhesion Test (ASTM D4541)

An adhesion test shall be conducted on specimens after exposure (up to

24 hours recovery time allowed) to the chemical resistance tests in

paragraph 3.6 below using an Elcometer or Hate Adhesion Tester. A

pull-off value of not less than 2000 psi is required. Tester must be run

and a pull-off value of not less than 2000 psi confirmed.

3.5 Chemical Resistance (ASTM D714)

3.5.1 High temperature - high pressure (autoclave) chemical

resistance test results shall not show more than a few blisters of

size 8 or greater, as defined in ASTM D714 and no loss of

adhesion per the procedure outlined in paragraph 10.5.2 of this

specification. The tested samples shall not show any cracking

or delamination.

3.5.2 The fully cured specimens will be immersed half-way in the

specified test solutions in the autoclave. After sealing, the test

chamber shall be heated to the test temperature specified in

Table A1 below. Stable condition (temperature/pressure) shall

be maintained for a minimum of 18 hours, after which the heat

shall be discontinued. The unit shall be cooled to 90ºC and the

pressure released over a time period of a minimum of one

minute and a maximum of three minutes. The specimens shall

be conditioned for one hour at 25ºC prior to being assessed.

3.5.3 The pressurizing gas shall be Nitrogen (N2) unless otherwise

specified.

Table A1 – Chemical Resistance Test Parameters




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Service Test Medium Test Temp. Test Pressure Test Time

a) Treated Seawater

ASTM D1141, Stock Solution 1 plus Stock Solution 2

95ºC 20.68 MPa (3000 psig)

24 hrs

b) Brine Reinjection Wet, Sour Gas or Crude

Formation Water Brine 3 mole% CO2 3 mole% H2S 94% mole% Methane

95ºC 20.68 MPa (3000 psig)

24 hrs

c) Wasia Water Wasia Water 100% CO2

95ºC 20.68 MPa (3000 psig)

24 hrs

d) Acid 10 vol. % HCl 50ºC Covered Vented Container

24 hrs

Formation Water Brine Composition (mg/l):

Na = 65,000; Ca = 23,000; Mg = 3,000; Cl = 150,000;

SO4 = 100; HCO3 = 300

Wasia Water Composition (mg/l):

Na = 2,500; Ca = 600; Mg = 120; Cl = 4,000; SO4 = 1,000;

HCO3 = 200; pH = 6.8 - 7.2

Note: In order for full and unrestricted approval of a coating system it must pass all above tests and also pass the bending tests. However, it is possible to get limited approval by passing the individual tests in a specific service. All systems shall pass (d) as well as be bendable in order to qualify except as otherwise noted in this SAMSS.