ANAMERICANNATIONALSTANDARDASMEB30.21-2014[RevisionofB30.21-2005(R2010)]LeverHoistsSafetyStandardforCableways,Cranes,Derricks,Hoists,Hooks,Jacks,andSlingsASMEB30.21-2014[RevisionofASMEB30.21-2005(R2010)]LeverHoistsSafetyStandardforCableways,Cranes,Derricks,Hoists,Hooks,Jacks,andSlingsANAMERICANNATIONALSTANDARDTwoParkAvenue•NewYork,NY•10016USADateofIssuance:May30,2014ThenexteditionofthisStandardisscheduledforpublicationin2019.ThisStandardwillbecomeeffective1yearaftertheDateofIssuance.ASMEissueswrittenrepliestoinquiriesconcerninginterpretationsoftechnicalaspectsofthisStandard.InterpretationsarepublishedontheASMEWebsiteundertheCommitteePagesathttp://cstools.asme.org/astheyareissued.Interpretationswillalsobeincludedwitheachedition.ErratatocodesandstandardsmaybepostedontheASMEWebsiteundertheCommitteePagestoprovidecorrectionstoincorrectlypublisheditems,ortocorrecttypographicalorgrammaticalerrorsincodesandstandards.Sucherratashallbeusedonthedateposted.TheCommitteePagescanbefoundathttp://cstools.asme.org/.Thereisanoptionavailabletoautomaticallyreceiveane-mailnotificationwhenerrataarepostedtoaparticularcodeorstandard.ThisoptioncanbefoundontheappropriateCommitteePageafterselecting“Errata”inthe“PublicationInformation”section.ASMEistheregisteredtrademarkofTheAmericanSocietyofMechanicalEngineers.ThiscodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.TheStandardsCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanopportunitytoparticipate.Theproposedcodeorstandardwasmadeavailableforpublicreviewandcommentthatprovidesanopportunityforadditionalpublicinputfromindustry,academia,regulatoryagencies,andthepublic-at-large.ASMEdoesnot“approve,”“rate,”or“endorse”anyitem,construction,proprietarydevice,oractivity.ASMEdoesnottakeanypositionwithrespecttothevalidityofanypatentrightsassertedinconnectionwithanyitemsmentionedinthisdocument,anddoesnotundertaketoinsureanyoneuti...
