1、Designation:D391116(Reapproved 2021)Standard Test Method forEvaluating Coatings Used in Light-Water Nuclear PowerPlants at Simulated Design Basis Accident(DBA)Conditions1This standard is issued under the fixed designation D3911;the number immediately following the designation indicates the year ofor
2、iginal 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.INTRODUCTIONDuring a DBA in nuclear power plants,conditions in the reactor cont
3、ainment will be characterizedby elevated temperature and pressure,as well as the presence of a radiation environment.Watersprays,with or without chemical additives,may be used in the primary containment to suppress theconsequences of the event,to scavenge radioactive products,and to return the conta
4、inment tonear-ambient pressure and temperature conditions.1.Scope1.1 This test method establishes procedures for evaluatingprotective coating systems test specimens under simulatedDBA conditions.Included are a description of conditions andapparatus for temperature-pressure testing,and requirementsfo
5、r preparing,irradiating,testing,examining,evaluating,anddocumenting the samples.1.2 Consideration should be given to testing using worstcase conditions(for example,surface preparation,temperatureand pressure profile,irradiation,spray chemistry,chemicalresistance,etc.)in an effort to reduce the numbe
6、r of testsrequired by changing plant accident calculations,changes incoating selection,etc.1.3 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 stan
7、dard.1.4 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use
8、.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to
9、 Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D714 Test Method for Evaluating Degree of Blistering ofPaintsD4082 Test Method for Effects of Gamma Radiation onCoatings for Use in Nuclear Power PlantsD4538 Terminology Relating to Protective Coating andLining Work for Power Generation
10、FacilitiesD5139 Specification for Sample Preparation for Qualifica-tion Testing of Coatings to be Used in Nuclear PowerPlants3.Terminology3.1 DefinitionsDefinitions for use with this standard areshown in Terminology D4538 or other applicable standards.4.Significance and Use4.1 This test method is de
11、signed to provide a uniform test todetermine the suitability of Coating Service Level 1 coatingsused inside primary containment of light-water nuclear facili-ties under simulated DBA conditions.This test method isintended only to demonstrate that under DBA conditions,thecoatings will remain intact a
12、nd not form debris which couldunacceptably compromise the operability of engineered safetysystems.Deviations in actual surface preparation and in1This test method is under the jurisdiction of ASTM Committee D33 onProtective Coating and Lining Work for Power Generation Facilities and is the directres
13、ponsibility of Subcommittee D33.02 on Service and Material Parameters.Current edition approved Feb.1,2021.Published February 2021.Originallyapproved in 1980.Last previous edition approved in 2016 as D3911 16.DOI:10.1520/D3911-16R21.2For referenced ASTM standards,visit the ASTM website,www.astm.org,o
14、rcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standar
15、d was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1application
16、 and curing of the coating materials from qualifica-tion test parameters require an engineering evaluation todetermine if additional testing is required.4.2 Since different plants have different tolerance levels forcoating conditions,the definition of appropriate acceptancecriteria is to be developed by the license holder based onindividual plant engineered safety systems operability consid-erations.4.3 Use of this standard is predicated on the testing facilityhaving a quality assurance program