ANAMERICANNATIONALSTANDARDASMEB30.28-2015(RevisionofASMEB30.28-2010)BalanceLiftingUnitsSafetyStandardforCableways,Cranes,Derricks,Hoists,Hooks,Jacks,andSlingsREAFFIRMED2020ASMEB30.28-2015(RevisionofASMEB30.28-2010)BalanceLiftingUnitsSafetyStandardforCableways,Cranes,Derricks,Hoists,Hooks,Jacks,andSlingsANAMERICANNATIONALSTANDARDTwoParkAvenue•NewYork,NY•10016USADateofIssuance:December30,2015ThenexteditionofthisStandardisscheduledforpublicationin2020.ThisStandardwillbecomeeffective1yearaftertheDateofIssuance.ASMEissueswrittenrepliestoinquiriesconcerninginterpretationsoftechnicalaspectsofthisStandard.InterpretationsarepublishedontheCommitteeWebpageandundergo.asme.org/InterpsDatabase.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,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityforinfringemento...