ASTM_D_3912_-_10.pdf

Designation:D391210Standard Test Method forChemical Resistance of Coatings and Linings for Use inNuclear Power Plants1This standard is issued under the fixed designation D3912;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method establishes procedures for the evalua-tion of the chemical resistance of coatings and linings for usein Coating Service Level I and II applications in nuclear powerplants.1.2 This test method is intended to be used as a screeningtest to evaluate coatings and linings on steel and concretesubstrates.1.3 This test method addresses two exposure intervals:(1)Short Term(Typically 5 days):Such exposures areprimarily applicable for coatings exposed to chemical splash orspill.(2)Long Term(Typically 180 days):Such exposures areprimarily applicable for linings exposed to continuous ornear-continuous chemical immersion.1.4 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D714 Test Method for Evaluating Degree of Blistering ofPaintsD1193 Specification for Reagent WaterD5139 Specification for Sample Preparation for Qualifica-tion Testing of Coatings to be Used in Nuclear PowerPlantsD7230 Guide for Evaluating Polymeric Lining Systems forWater Immersion in Coating Service Level III Safety-Related Applications on Metal Substrates2.2 NACE Standard:NACE Standard TM-01-742002 Laboratory Methods forthe Evaluation of Protective Coatings Used as LiningMaterials in Immersion Service33.Significance and Use3.1 The lining test described in 6.2 may be used to evaluatethe chemical resistance characteristics of coating systems forlining surfaces of tanks,vessels and similar facilities used inCoating Service Level I and II applications in a nuclear powerplant.For the evaluation of linings in Coating Service Level IIIwater immersion applications in nuclear power plants use thetest methods and guidance found in Guide D7230.3.2 The specific chemical resistance tests described in 6.1are dependent upon the relative severity of the service condi-tions.The specific chemical reagents to be used shall bespecified to reflect the intended service conditions.3.3 At the discretion of the user,the methods presented mayalso be used to evaluate coatings and linings for applications inother types of power plants or other industrial services.4.Sampling4.1 Prepare individual specimens for testing.4.2 Prepare one additional specimen as a control.Multipletests may be performed.5.Preparation of Test Specimens5.1 Steel Panels:5.1.1 Prepare steel panels in accordance with SpecificationD5139.5.2 Concrete BlocksPrepare blocks in accordance withSpecification D5139 with the exception that the top and bottomends of the block shall be coated.1This test method is under the jurisdiction of ASTM Committee D33 onProtective Coating and Lining Work for Power Generation Facilities and is the directresponsibility of Subcommittee D33.02 on Service and Material Parameters.Current edition approved May 15,2010.Published June 2010.Originallyapproved in 1980.Last previous edition approved in 2001 as D3912 95(2001)which was withdrawn January 2010 and reinstated in May 2010.DOI:10.1520/D3912-10.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from NACE International(NACE),1440 South Creek Dr.,Houston,TX 77084-4906,http:/www.nace.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.Procedure6.1 Short Term Tests:6.1.1 Test the chemical resistance properties of the coatingsby immersion in the appropriate test solutions for duration of 5days or as required.6.1.2 Maintain a temperature of 72 6 5F(22 6 3C)unlessthe service conditions require a higher temperature.6.1.3 Use reagent grade chemicals and distilled or deionizedwater for all solutions.Regarding the water,see SpecificationD1193 and identify the grade used.NOTE1Any grade or type described in Specification D1193 will beacceptable for use unless otherwise specified.6.2 Long Term Test:6.2.1 Test in accordance with NACE TM-01-74-2002.UseProcedure B,“Immersion Testing”except when a significanttemperature differential(t