1、Designation:D788813Standard 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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced
5、 Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD907 Terminology of AdhesivesF141 Terminology Relating to Resilient Floor Coverings3.Terminology3.1 Definitions:3.1.1 plasticizer,nadditives that increase the plasticity orfluidity of a material;a chemical added especially to rubbers
6、and 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 migration is detrimental to many adhesives,including hot melts,which could be possibly used in conjunc-tion wit
7、h 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 with proposed installation adhesive(s).5.Apparatus5.1 Circulating Air Oven,capable of maintaining 140 6 3F(
8、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 alternate means of application.5.6 Four Pieces of Aluminum Foil,approximately 26 in.by10 in.(66 cm by 25 cm).6.Pr
9、ocedure6.1 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-structed by the floor covering or adhesive manufacturer(trowel,roller,or spray)apply the adhesive to the
10、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 trowel.6.3 Allow the adhesive on the test specimens to dry at roomconditions maintained at 73 6 3F(23 6 2C)and
11、 50 6 5%relative humidity for not less than 3 h before testing.6.4 Place each of the uncoated 6 in.by 6 in.(15 cm by 15cm)pieces 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 simil
12、ar type method toensure firm and even contact between the coated and uncoatedsurfaces.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.1This practice is under
13、 the jurisdiction of ASTM Committee D14 on Adhesivesand is the direct responsibility of Subcommittee D14.10 on Working Properties.Current edition approved Oct.15,2013.Published November 2013.DOI:10.1520/D7888-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Custom
14、er Service at serviceastm.org.For 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 States1 6.7 Place one of the test assemblies in the
15、oven at 140 63F(60 6 2C)for 15 days 6 3 h.The second assembly shallbe maintained in controlled environment of 73 6 3F(23 62C)and 50 6 5%relative humidity for an equal time period.6.8 After 15 days remove the test assembly from the ovenand allow to cool at room temperature for a period of not lesstha
16、n 30 6 5 min.6.9 Remove the test assembly form the aluminum foil,andthen separate the two assemblies comparing the one taken fromthe oven,with the one allowed to remain under room condi-tions for signs of apparent plasticizer migration or differencesin adhesion.Examine the adhesive line for any gumminess oroily feel to the adhesive.6.10 Record and report all observations.7.Report7.1 Date,time and duration of test7.2 Compare and evaluate the two test specimens and reportthe difference,in appearan
