BP25B95-100490240000777204AMERICANNATIONALSTANDARDTERMINOLOGYforPRESSURERELIEFDEVICESANSI695.1-1977(REVISIONOFANSI895.1-1972)SECRETARIATTHEAMERICANSOCIETYOFMECHANICALENGINEERSPUBLISHEDBYTHEAMERICANSOCIETYOFMECHANICALENGINEERSUnitedEngineeringCenterNewYork,N.Y.1O017345East47thStreetCopyrightASMEInternationalProvidedbyIHSunderlicensewithASMELicensee=UniversityofAlberta/5966844001,User=trert,rtyrtyrtyNotforResale,03/07/201523:50:25MSTNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,````,``,`,,`,,`,`,```,`,,,,`-`-`,,`,,`,`,,`---BP25875-L00470240000778140Nopartofthisdocumentmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,,withoutthepriorwrittenpermissionofthepublisher.CopyrightOt977byTHEAMERICANSOCIETYOFMECHANICALENGINEERSAllRightsReservedPrintedinU.S.A.CopyrightASMEInternationalProvidedbyIHSunderlicensewithASMELicensee=UniversityofAlberta/5966844001,User=trert,rtyrtyrtyNotforResale,03/07/201523:50:25MSTNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,````,``,`,,`,,`,`,```,`,,,,`-`-`,,`,,`,`,,`---BP25B95.1WO0490240000979087=FOREWORDItistheintentofthisstandardtodefinepressurereliefdevices,theirfunctionalandoperationalcharac-teristics,andtostandardizeterminologycoveringsuchdevicesandtheircharacteristics.TheeffortwasbeguninJuly,1961whentheChlorineInstituteaskedASA(nowknownasANSI)toinitiateaprojectinthefieldofsafetydevicenomenclature.Ageneralconferenceofinterestedgroupswasheldtodeterminethedesirabilityofstartingsuchapro-ject.ThesenseofthemeetingwasthattheworkofdraftingsuchastandardshouldbebegunandtheASMEwasaskedtobethesponsor(nowknownassecretariat)oftheproject.AnorganizationalmeetingofB95washeldonJune8,1965withsubsequentmeetingsheldonJune7,1966,December6,1966andJune6,1967.AfirstdraftdocumentwassubmittedforletterballotapprovalofthecommitteeonNovember7,1967..Thisballotresultedincommentswhichindicatedthatfurtherre-visionswererequired.AnotherdraftwassubmittedforletterballotapprovalofthecommitteeonDecember16,1970.Finalapprovalforthatstan...
