1、Designation:D788818Standard Practice forEvaluating Adhesive and the Effects of Plasticizer FoundWithin Polyvinyl Chloride-Backed Floor Coverings1This standard is issued under the fixed designation D7888;the number immediately following the designation indicates the year oforiginal adoption or,in the
2、 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 standard will provide a qualitative means to deter-mine the potential effects of plastic
3、izers contained withinpolyvinyl chloride(PVC)floor covering materials on a specificadhesive.1.2 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 sta
4、ndard.1.3 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 us
5、e.1.4 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 t
6、o Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD907 Terminology of AdhesivesD8089 Practice for Accelerated Heat Aging for Floor Cov-ering AdhesivesF141 Terminology Relating to Resilient Floor Coverings3.Terminology3.1 Definitions:3.1.1 plasticize
7、r,nadditives that increase the plasticity orfluidity of a material;a chemical added especially to rubbersand resins to impart flexibility,workability,or elasticity.3.1.2 polyvinyl chloride(PVC),na thermoplastic polymerused in many floor covering materials.4.Significance and Use4.1 Plasticizer migrat
8、ion is detrimental to many adhesives,including hot melts,which could be possibly used in conjunc-tion with PVC backed flooring materials,whether resilient ortextile,broadloom,tile or plank.This practice can be used as anindicator to determine if plasticizers in the flooring material arecompatible wi
9、th proposed installation adhesive(s).5.Apparatus5.1 Circulating Air Oven,capable of maintaining 140 6 3F(60 6 2C).5.2 Test Adhesive.5.3 Test Floor Covering.5.4 Floor Covering Seam-roller,(approximately 2 lb(1 kg).5.5 U Notched Trowel,132in.by116in.by132in.(0.079 cmby 0.16 cm by 0.079 cm),or alternat
10、e means of application.5.6 Four Pieces of Aluminum Foil,approximately 26 in.by10 in.(66 cm by 25 cm).6.Procedure6.1 Cut four 6 in.by 6 in.(15 cm by 15 cm)pieces of thePVC backed flooring test material.Material composition canbe textile or resilient.6.2 Using the recommended application method as in-
11、structed by the floor covering or adhesive manufacturer(trowel,roller,or spray)apply the adhesive to the backing oftwo of the 6 in.by 6 in.(15 cm by 15 cm)pieces of floorcovering.If no application method is specified use a132in.by116in.by132in.(0.079 cm by 0.16 cm by 0.079 cm)U notchedflooring trowe
12、l.6.3 Allow the adhesive on the test specimens to dry at roomconditions maintained at 73 6 3F(23 6 2C)and 50 6 5%relative humidity for not less than 3 h before testing.1This practice is under the jurisdiction of ASTM Committee D14 on Adhesivesand is the direct responsibility of Subcommittee D14.10 o
13、n Working Properties.Current edition approved Nov.1,2018.Published November 2018.Originallyapproved in 2013.Last previous edition approved in 2013 as D7888 13.DOI:10.1520/D7888-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.Fo
14、r 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 standard was developed in accordance with internationally r
15、ecognized 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.1 6.4 Place each of the uncoated 6 in.by 6 in.(15 cm by 15cm)pie
16、ces back-to-back to the adhesive coated specimensforming two test assemblies.6.5 Press the test assembly together rolling completelyusing a floor covering seam-roller or similar type method asshown in Fig.1 to ensure firm and even contact between thecoated and uncoated surfaces.6.6 Completely wrap the test assemblies in aluminum foil sothat each assembly is fully sealed.It is recommended toenvelope and tightly seal the test specimens with two layers ofaluminum foil.6.7 Place one of the test asse
