ASTM_D_3122_-_15.pdf

Designation:D312215Standard Specification forSolvent Cements for Styrene-Rubber(SR)Plastic Pipe andFittings1This standard is issued under the fixed designation D3122;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This specification provides general requirements forstyrene-rubber solvent cements to be used in joining styrene-rubber(SR)plastic pipe and fittings.1.2 A recommended procedure for joining styrene-rubberpipe and fittings is given in the appendix.1.3 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.4 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 and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD1084 Test Methods for Viscosity of AdhesivesD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD2852 Specification for Styrene-Rubber(SR)Plastic DrainPipe and FittingsE1953 Practice for Description of Thermal Analysis andRheology ApparatusF402 Practice for Safe Handling of Solvent Cements,Primers,and Cleaners Used for Joining ThermoplasticPipe and FittingsF412 Terminology Relating to Plastic Piping SystemsF493 Specification for Solvent Cements for ChlorinatedPoly(Vinyl Chloride)(CPVC)Plastic Pipe and Fittings3.Terminology3.1 DefinitionsDefinitions are in accordance with Termi-nology F412,and abbreviations are in accordance with Termi-nology D1600,unless otherwise specified.4.General Requirements4.1 The solvent cement shall be a solution of styrene-rubber(SR)plastic compound or resin meeting the following require-ments.4.1.1 The SR plastic compounds or resin shall contain atleast 50%styrene plastics,combined with rubbers to aminimum rubber content of 5%,and compounding materialssuch as antioxidants and lubricants,and may contain up to15%acrylonitrile combined in the styrene plastics or rubbers,or both.The rubbers shall be of the polybutadiene or butadiene-styrene type,or both,with a maximum styrene content of 25%or nitrile type or both.The combined styrene plastics andrubber content shall be not less than 90%.No filler may beused.(See Specification D2852.)4.2 Either virgin or clean rework material may be usedprovided that the rework material is generated from the solventcement manufacturers own production,is compatible withvirgin material,and will produce a cement that meets therequirements of this specification.4.3 The cement shall be free-flowing and shall not containlumps,macroscopic undissolved particles,or any foreignmatter that will adversely affect the ultimate joint strength orchemical resistance of the cement.4.4 The cement shall show no gelatin.It shall show nostratification or separation that cannot be removed by stirring.4.5 The cement shall be a solution of styrene-rubber(SR)plastic compound or resin meeting the requirements of 4.1.1dissolved in one of the following solvents:4.5.1 Methyl ethyl ketone.4.5.2 Toluene.NOTE1It is recommended that solvent cements made to this speci-fication not be orange since that color is being recommended for use with1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.20 on Joining.Current edition approved Aug.1,2015.Published August 2015.Originallyapproved in 1972.Last previous edition approved in 2009 as D3122 95(2009).DOI:10.1520/D3122-15.2For 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.*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 CPVC solvent cement under Specification F493.5.Detail Requirements5.1 Resin ContentThe SR resin compound shall be 20%minimum by mass with methyl ethyl ketone as the solvent orshall be 15%minimum by mass with toluene as the solvent,when tested in accordance with 6.3.5.2 DissolutionThe cement shall be capable of dissolvingan additional 10%by mass of styrene-rubber(SR)resin orcompound meeting the requirements of 4.1.1 at 23 6 2C(73.46 3.6F)without evidence of gelation.5.3 ViscosityThe minimum viscosity at 23 6 2C(73.4 63.6F)shall be 90 mPas(90 cP)