1、Designation:D526016Standard 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 designation indicates th
2、e 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.Scope*1.1 This classification covers the method for determiningand
3、 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 in Specifications
4、 D1784,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 requirements of this st
5、andard.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.NOTE1There
6、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 Plas-ticsD1784 Specific
7、ation for Rigid Poly(Vinyl Chloride)(PVC)Compounds and Chlorinated Poly(Vinyl Chloride)(CPVC)CompoundsD4216 Specification 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
8、 Chlorinated Poly(Vinyl Chloride)(CPVC)Com-pounds for Plastic Pipe and Fittings Used in NonpressureApplicationsD4551 Specification for Poly(Vinyl Chloride)(PVC)PlasticFlexible Concealed Water-Containment Membrane3.Terminology3.1 Definitions and Abbreviations:3.1.1 Definitions are in accordance with
9、Terminology D883and abbreviations with Terminology D1600 unless otherwiseindicated.4.Significance and Use4.1 Reference this chemical resistance classification for anyPVC/CPVC material compound specification wherein a levelof resistance to specific chemicals is required for satisfactoryproduct perfor
10、mance.4.2 Listing of a chemical in the annex does not implyPVC/CPVC compatibility or resistance to the chemical.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 practicalreq
11、uirement in a specification.4.3 For resistance to mixtures of chemicals,it is suggestedthat the blend be tested 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-s
12、tressed.When service conditions include stress or otherfactors,or both,test chemical resistance of the PVC/CPVCcompound under actual service conditions.1This classification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on Thermopla
13、sticMaterials.Current edition approved May 1,2016.Published May 2016.Originallyapproved in 1992.Last previous edition approved in 2010 as D5260-04(2010).DOI:10.1520/D5260-16.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annu
14、al 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 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.Basis of Classi
15、fication5.1 The chemical resistance of a PVC or CPVC compoundis composed of the cell classifications specified 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)A05Concentrati
16、on 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 thisclassification.6.Performance Requirements6.1 The chemical resistance shall be for a compound thatmeets the physical property and processing requirements of theapplication.7.Sampling7.1 A b
