Designation:E1718–95(Reapproved2004)StandardGuideforAdministrativeandEngineeringControlsforSiliconCarbideWhiskerWorkAreas1ThisstandardisissuedunderthefixeddesignationE1718;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguideappliestoworkplaceswhereunboundsiliconcarbidewhiskersaremanufactured,processedintoproducts,orotherwiseused.1.2Thisguideoffersguidanceforcontrollingworkplaceexposurestoairbornesiliconcarbidewhiskers.1.3Allapplicablefederal,state,county,andlocalregula-tionsmustbecompliedwithwhenthisguideisused.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E1437PracticeforHandlingSiliconCarbideWhiskersE1451GuideforDisposalofWastesContainingSiliconCarbideWhiskersandFibersE1716GuidefortheSelectionandUseofPersonalProtec-tiveEquipmentforHumansWorkingwithRespirableSiliconCarbideWhiskersE1717GuideforWorkplaceHealthandSafetyTrainingforRespirableSiliconCarbideWhiskers3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1respirablesiliconcarbide—acrystallinesiliconcar-bidematerial,approximatelycylindricalinshape,whiskersandfiberswithanaspectratioequaltoorgreaterthan5,andadiameterlessthan3.0µmwiththepotentialtobecomeairborne.3.1.2siliconcarbidewhiskerworkarea—ahood,labora-tory,room,building,facility,orotherdefinedareawhereunboundsiliconcarbidewhiskersarehandled,andtowhichpotentialairbornesiliconcarbidewhiskerscanbereasonablyrestricted.3.1.3unboundsiliconcarbidewhiskersandfibers—whiskersandfiberswiththepotentialtobecomeairborne.4.ControlsforUnboundSiliconCarbideWhiskerWorkAreas4.1Application—Thefollowingcontrol...
