1、Designation:D526004(Reapproved 2010)Standard Classification forChemical Resistance of Poly(Vinyl Chloride)(PVC)Homopolymer and Copolymer Compounds and ChlorinatedPoly(Vinyl Chloride)(CPVC)Compounds1This standard is issued under the fixed designation D5260;the number immediately following the designa
2、tion 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 classification covers the method fo
3、r determiningand classifying the resistance of poly(vinyl chloride)(PVC)homopolymer and copolymer compounds,and chlorinatedpoly(vinyl chloride)(CPVC)compounds in chemicals bysimple immersion testing of unstressed specimens.1.2 This classification is applicable to any PVC or CPVCcompound as defined i
4、n Specifications D1784,D3915,D4216,D4396,or D4551.1.3 The values stated in SI units are to be regarded asstandard.1.4 The text of this standard references notes and footnoteswhich provide explanatory material.These notes and footnotes(excluding those in tables and figures)shall not be consideredas r
5、equirements of this 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 pr
6、ior to use.NOTE1There are no ISO standards covering the subject matter of thisclassification.2.Referenced Documents2.1 ASTM Standards:2D543 Practices for Evaluating the Resistance of Plastics toChemical ReagentsD883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to P
7、las-ticsD1784 Specification for Rigid Poly(Vinyl Chloride)(PVC)Compounds and Chlorinated Poly(Vinyl Chloride)(CPVC)CompoundsD3915 Specification for Rigid Poly(Vinyl Chloride)(PVC)and Chlorinated Poly(Vinyl Chloride)(CPVC)Com-pounds for Plastic Pipe and Fittings Used in PressureApplicationsD4216 Spec
8、ification for Rigid Poly(Vinyl Chloride)(PVC)and Related PVC and Chlorinated Poly(Vinyl Chloride)(CPVC)Building Products CompoundsD4396 Specification for Rigid Poly(Vinyl Chloride)(PVC)and Chlorinated Poly(Vinyl Chloride)(CPVC)Com-pounds for Plastic Pipe and Fittings Used in NonpressureApplicationsD
9、4551 Specification for Poly(Vinyl Chloride)(PVC)PlasticFlexible Concealed Water-Containment Membrane3.Terminology3.1 Definitions and Abbreviations:3.1.1 Definitions are in accordance with Terminology D883and abbreviations with Terminology D1600 unless otherwiseindicated.4.Significance and Use4.1 Ref
10、erence this chemical resistance classification for anyPVC/CPVC material compound specification wherein a levelof resistance to specific chemicals is required for satisfactoryproduct performance.4.2 Listing of a chemical in the annex does not implyPVC/CPVC compatibility or resistance to the chemical.
11、Someof the chemicals listed could be deleterious to a specificcompound,causing radical changes in the physical properties.Resistance to these chemicals is not intended to be a practicalrequirement in a specification.4.3 For resistance to mixtures of chemicals,it is suggestedthat the blend be tested
12、rather than accepting the resistance ofthe individual chemicals because of a possible solvencyenhancement of the combined chemicals.4.4 The specimens tested in this classification are un-stressed.When service conditions include stress or other1This classification is under the jurisdiction of ASTM Co
13、mmittee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Aug.1,2010.Published November 2010.Originallyapproved in 1992.Last previous edition approved in 2004 as D5260-04.DOI:10.1520/D5260-04R10.2For referenced ASTM standards,vi
14、sit 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 B
15、arr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 factors,or both,test chemical resistance of the PVC/CPVCcompound under actual service conditions.5.Basis of Classification5.1 The chemical resistance of a PVC or CPVC compoundis composed of the cell classifications specified
16、 from Table 1.For example,the resistance of PVC to 25%acetic acid atambient temperature would be written as a cell classification ofA05231:ClassChemical(acetic acid from annex)A05Concentration of 25%2Temperature of 23C3Resistance1NOTE2The cell-type format provides the means of classifyingchemical resistance.This type of format is subject to possible misappli-cation in classifying a chemical resistance that is unobtainable withcommercially available materials.Consult the manufacturer regarding th
