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ASTM_F_656_-_15.pdf

1、Designation:F65615Standard Specification forPrimers for Use in Solvent Cement Joints of Poly(VinylChloride)(PVC)Plastic Pipe and Fittings1This standard is issued under the fixed designation F656;the number immediately following the designation indicates the year of originaladoption or,in the case of

2、 revision,the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers requirements for primers foruse with poly(vinyl chloride)(PVC)pipe and fitti

3、ngs that are tobe joined by PVC solvent cements meeting the requirements ofSpecification D2564.1.2 These primers are used in pressure and nonpressureapplications with plain end pipe and either socket-type fittingsor bell end pipe.These primers prepare the surface of pipe andfittings before the appli

4、cation of solvent cement.The primerseffect on the set and cure time of the joint is dependent on thecement,pipe size,application method,temperature,and hu-midity.1.3 Aprocedure for using the primer with cement is given inPractice D2855.1.4 The text of this specification references notes,footnotes,an

5、d appendixes which provide explanatory material.Thesenotes and footnotes(excluding those in tables and figures)shallnot be considered as requirements of the specification.1.5 The values stated in inch-pound units are to be regardedas the standard.The values given in parentheses are forinformation on

6、ly.1.6 The following safety hazards caveat pertains only to thetest methods portion,Section 6,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety

7、and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2D1600 Terminology forAbbreviated Terms Relating to Plas-ticsD1784 Specification for Rigid Poly(Vinyl Chloride)(PVC)Compounds and Chlorinated Poly(Vinyl Chloride)(CPVC

8、)CompoundsD2564 Specification for Solvent Cements for Poly(VinylChloride)(PVC)Plastic Piping SystemsD2855 Practice for Making Solvent-Cemented Joints withPoly(Vinyl Chloride)(PVC)Pipe and FittingsF402 Practice for Safe Handling of Solvent Cements,Primers,and Cleaners Used for Joining ThermoplasticPi

9、pe and FittingsF412 Terminology Relating to Plastic Piping SystemsF493 Specification for Solvent Cements for ChlorinatedPoly(Vinyl Chloride)(CPVC)Plastic Pipe and Fittings2.2 NSF/ANSI Standards:3Standard No.14 for Plastics Piping System Components andRelated MaterialsStandard No.61 for Drinking Wate

10、r System Components Health Effects3.Terminology3.1 DefinitionsDefinitions are in accordance with Termi-nology F412,and abbreviations are in accordance with Termi-nology D1600,unless otherwise specified.3.2 Definitions:3.2.1 fluorescent primera primer which is clear and col-orless when viewed under v

11、isible light such as sunlight andindoor lighting,but which is readily visible when viewed underUV light(also known as,black light).3.2.2 primeran organic solvent or a blend of solvents,which enhances adhesion,applied to plastic pipe and fittingsprior to application of a solvent cement.4.Material Req

12、uirements4.1 The primer shall be an organic liquid with a viscosity nogreater than 65 centipoise at 25C and shall not contain anyundissolved particles.1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.20

13、on Joining.Current edition approved Aug.1,2015.Published August 2015.Originallyapproved in 1980.Last previous edition approved in 2010 as F656 10.DOI:10.1520/F0656-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book

14、 of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from NSF International,P.O.Box 130140,789 N.Dixboro Rd.,AnnArbor,MI 48113-0140,http:/www.nsf.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM Internation

15、al,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.2 The solvent system to be used in the formulation of thisprimer is not specified.NOTE1If required for identification purposes,colorants shall be usedin the primer.It is recommended that orange not be used,since th

16、is is therecommended color for CPVC solvent cement covered under Specifica-tion F493.NOTE2When colorants are used in the primer for identificationpurposes a fluorescent primer meeting the requirements of this specifica-tion and visible under UV(black)light may be acceptable.5.Detail Requirements5.1 Dissolving AbilityThe primer shall be capable ofdissolving at least 10%by weight of PVC resin at 73.4 63.6F(23 6 2C)within 60 min,as specified in 5.1.The PVCresin shall be a resin used to make poly(vi

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