ASTM A972 A972M-2000(2010) Standard Specification for Fusion Bonded Epoxy-Coated Pipe Piles《熔焊的环氧树脂涂层的管桩的标准规范》.pdf
《ASTM A972 A972M-2000(2010) Standard Specification for Fusion Bonded Epoxy-Coated Pipe Piles《熔焊的环氧树脂涂层的管桩的标准规范》.pdf》由会员分享,可在线阅读,更多相关《ASTM A972 A972M-2000(2010) Standard Specification for Fusion Bonded Epoxy-Coated Pipe Piles《熔焊的环氧树脂涂层的管桩的标准规范》.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: A972/A972M 00 (Reapproved 2010)Standard Specification forFusion Bonded Epoxy-Coated Pipe Piles1This standard is issued under the fixed designation A972/A972M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of
2、 last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers pipe piles with protectivefusion-bonded epoxy powder coating applied by the electro-static
3、spray, flocking, or fluidized bed process.NOTE 1The coating applicator is identified throughout this specifica-tion as the manufacturer.1.2 Other organic coatings may be used provided they meetthe requirements of this specification.1.3 Requirements for the powder coating are contained inAnnex A1.1.4
4、 This specification is applicable for orders in either SIunits (as Specification A972M) or inch-pound units as Speci-fication A972. The values stated in either SI or inch-poundunits are to be regarded as standard. Within the text, theinch-pound units are shown in brackets.1.5 The following precautio
5、nary statement refers to the testmethod portion only, Section 8, of this standard: This standarddoes not purport to address all of the safety concerns, if any,associated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety and health practicesand determi
6、ne the applicability of regulatory limitations priorto use.2. Referenced Documents2.1 ASTM Standards:2A252 Specification for Welded and Seamless Steel PipePilesB117 Practice for Operating Salt Spray (Fog) ApparatusD4060 Test Method for Abrasion Resistance of OrganicCoatings by the Taber AbraserG8 Te
7、st Methods for Cathodic Disbonding of PipelineCoatingsG12 Test Method for Nondestructive Measurement of FilmThickness of Pipeline Coatings on SteelG14 Test Method for Impact Resistance of Pipeline Coat-ings (Falling Weight Test)G20 Test Method for Chemical Resistance of PipelineCoatings2.2 American
8、Petroleum Institute Specification:3API RP 5L7 Recommended Practice for Internal Fusion-Bonded Epoxy Coating of Line Pipe2.3 National Association of Corrosion Engineers Stan-dards:4TM0175 Visual Standard for Surfaces of New Steel Cen-trifugally Blast Cleaned with Steel Shot or Steel Grit(NACE No. 2)R
9、P0490 Holiday Detection of Fusion-Bonded Epoxy Exter-nal Pipeline Coatings of 250 to 750 m (10 to 30 mils)2.4 Steel Structures Painting Council Standards:5SSPC VIS 1 Visual StandardsSSPC-SP1 Surface Preparation Specification No. 1: SolventCleaningSSPC-SP10 Near White Blast Cleaning3. Ordering Inform
10、ation3.1 Orders for pipe piles under this specification mayinclude the following information:3.1.1 Specification for designation and year of issue,3.1.2 Size (pipe pile outside diameter and nominal wallthickness),3.1.3 Quantity.3.1.4 Length,3.1.5 Portions to be coated (full length or distance fromen
11、d),3.1.6 Requirements for certifications (see 4.1 and 12.1),3.1.7 Requirements for material samples (see 4.3),3.1.8 Requirements for patching material (see 4.4),3.1.9 Requirements for visual standards for surface cleaningcomparison (see 5.1),3.1.10 Requirements for test frequency (see 8.1, 8.2), and
12、3.1.11 Requirements for inspections at the manufacturingplant (see 10.1).1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is under the direct responsibility ofSubcommittee A01.09 .Current edition approved April 1, 2010. Published Aug
13、ust 2010. Originallyapproved in 1997. Last previous edition approved in 2004 as A972/A972M00(2004). DOI: 10.1520/A0972_A0972M-00R10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume inform
14、ation, refer to the standards Document Summary page onthe ASTM website.3Available from American Petroleum Institute (API), 1220 L. St., NW, Wash-ington, DC 20005-4070, http:/www.api.org.4Available from NACE International (NACE), 1440 South Creek Dr., Houston,TX 77084-4906, http:/www.nace.org.5Availa
15、ble from Society for Protective Coatings (SSPC), 40 24th St., 6th Floor,Pittsburgh, PA 15222-4656, http:/www.sspc.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4. Materials and Manufacture4.1 Steel pipe piles to be coated shall
16、 meet the requirementsof Specification A252 as ordered.NOTE 2Surface conditions such as slivers, gouges, laminations, pits,and sharp edges may cause coating application difficulties and effortshould be made to hold these conditions to a minimum.4.2 The powder coating shall meet the requirements list
17、ed inAnnex A1 and shall be approved by the purchaser.4.2.1 If specified in the order, a written certification shall befurnished to the purchaser that properly identifies the suppliedpowder coating, batch designation of each batch used in theorder, quantity represented, date of manufacture, name anda
18、ddress of manufacturer, and states that the powder coating,meets the requirements of Annex A1.4.3 If specified in the order, a representative 0.2 kg 8 oz.sample from each batch of the powder coating shall be suppliedto the purchaser. The sample shall be packaged in an airtightcontainer and identifie
19、d by batch designation.4.4 Patching material shall be compatible with the powdercoating and recommended by the manufacturer of the powdercoating. If specified in the order, patching material shall besupplied to the purchaser.5. Surface Preparation5.1 Prior to blast cleaning, the surfaces of steel pi
20、pe piles tobe coated shall be precleaned, as required, in accordance withSSPC-SP1. Steel surfaces shall be cleaned by abrasive blastcleaning to near-white metal in accordance with SSPC-SP10.The cleaning media used shall produce an anchor patternprofile of 38100 m 1.54.0 mils. Either of the following
21、visual standards of comparison shall be used to define the finalsurface condition: SSPC VIS 1 or NACE TM0175. Expendedblasting media debris and dust shall be removed from blastedsurfaces prior to applying the powder coating.5.2 Prior to application of the fusion-bonded epoxy powdercoating, raised sl
22、ivers, scabs, laps, sharp edges, or seams shallbe removed using abrasive grinders. No individual area ofgrinding shall exceed 230 cm236 in.2. The total area ofgrinding shall not exceed 1 % of the total surface area.NOTE 3Pipe piles with excessive grinding should be reblasted prior tocoating to estab
23、lish a suitable anchor pattern in the ground area.6. Coating Application6.1 The powder coating shall be applied to the cleaned steelsurfaces before visible oxidation occurs, but not exceeding 3 hafter cleaning.6.2 To achieve the required coating thickness (see 7.1), thesteel shall be preheated prior
24、 to applying the powder coating inaccordance with the powder coating manufacturers writtenrecommendations. The heat source shall not leave a residue orcontaminant on the steel surfaces. If oxidation occurs, the steelshall be cooled to ambient temperature and recleaned beforeapplying the powder coati
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