ASTMD377986m07575100033182Tw-73J7~~Designation.D3979-884TbAMERICANSOCIETYFORTESTINQANDMATERIALS1916RaceSI.,Philadelphia,Pa.19103ReprintedfromtheAnnualBookofASTMStandards,CopyrightASTMIfnotlistedinthecurrentcombinedindex,willappearinthenextedition.StandardTestMethodforPARTICULATEMATTERINTRICHLOROTRIFLUOROETHANE'ThisstandardisissuedundertheIkeddesignationD3979;thenumberimmediatelyfoilowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthewindicatestheyearoflastreapproval.Asupem'ptepsilon(e)indicatesaueditorialchangesincethelastcevkionorreapprod.A.SAMPLING1.scopeI.1Thistestmethodcoversthesamplingofultra-cleangradesolventfrom55-galdrumsandtanktrucks.1.2Sinceaheterogeneoussampleisbeingtaken,thoroughagitationduringsamplingknec-essary.Caremustbeexercisedinavoidingcon-taminationfromthesurroundings.1.3Thisstandardmayinvolvehazardousma-terials,operations,andequipment.Thisstandarddoesnotpurporttouddressallofthesafityprob-lemsassociatedwithitsuse.Itistheresponsibil-ityofwhoeverusesthisstandardtoconsultandestablishappropriatesafityandhealthpracticesanddeterminetheapplicabilityofregulatorylimi-tationspriortouse.AspecificprecautionarystatementisgiveninSection6.2.SummaryofMethod2.1Instrucfionsaregivenforsamplingoful-tra-cleangradesolventsothatarepresentativesampleofparticulatematterwillbeobtained.3.SignificancesndUse3.1Thistestmethodcanbeemployedtoob-tainrepresentativesamplesforthedeterminationofparticulatematterintrichlorotrifluoroethanefrom55-galdrumsandtanktrucks.4.ApparatusNOTE1-Equivalentapparatusmaybeused.4.1StainlessSteelProbe,Y4in.outsidedi-4.2StainlessSteelTube,Yiin.outsidediam-4.3TFE-FluorocarbonDiskhavingYain.X6ameter,tofallengthabout40in.eter,about20in.inlength.in.diameter.4.4TFE-FluorocarbonStopper.4.5VinylTubingandadouble-actingrubber4.6Bottle,amber,I-galcapacity.bulb(vacuum).5.Reagentsethane.6.SafetyPrecautions6.1Thesolventremovesnaturaloilsfromskin.Avoidrepeatedskincontact.Thesolventisnotflammableandhasa...
