【英文标准名称】:StandardPracticesforMakingHeatsealsforDeterminationofHeatsealabilityofFlexibleWebsasMeasuredbySealStrength
【原文标准名称】:通过测量密封强度测定挠性网热密封性能用熔焊的标准实施规范
【标准号】:ASTMF2029-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:F02.20
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:heatsealability;heatsealing;hottack;sealstrength;Flexiblebarriermaterials;Heatsealability(offlexiblewebs);Hottack;Sealstrength
【摘要】:Thispracticeallowsdeterminationoftheheatsealabilityofasurfaceorsealantlayer.Whileitisnecessarytohaveaheatsealsurfacelayerthathasadequatesealstrengthfortheapplication,othermaterialproperties,suchasthespecificconstructionandtotalthickness,bothchosentosatisfyrequirementsotherthanheatsealability,willimpactthesealingpropertiesofthematerial.Thispracticeallowstheimpactofchangesinmaterialpropertiesonheatsealabilitytobemeasured.1.1Thesepracticescoverlaboratorypreparationofheatsealsandthetreatmentandevaluationofheatsealstrengthdataforthepurposeofdeterminingheatsealabilityofflexiblebarriermaterials.Itdoesnotcovertherequiredvalidationprocedureforthematerialsandproductionequipment.1.2Testingstrengthorotherpropertiesoftheheatsealsformedbythesepracticesisnotincludedinthisstandard.RefertoTestMethodF88fortestingheatsealstrength.1.3Thepracticesofthisstandardarerestrictedtosealingwithamachineemployinghot-barjaw(s).Impulse,high-frequency,andultrasonicheatingmethodsarenotincluded.1.4Thesepracticesapplyprimarilytowebsintendedtobeusedoncommercialmachinesemployingreciprocatingsealingjaws,suchasmostform-fill-sealpackagingmachines,platenheatsealers,andsoforth.Conditionsofdwelltimeandsealingpressureonmachinesofthistypetypicallyaredifferentfromthoseonrotarymachines.1.5Theprocedureofthispracticewithrespecttochoiceofheatsealingconditionsapplytoultimatesealstrengthorhottackmeasurement.1.6Sealsmaybemadebetweenwebsofthesameordissimilarmaterials.Theindividualwebsmaybehomogeneousinstructureormultilayered(coextruded,coated,laminated,andsoforth).1.7StrengthoftheheatsealasmeasuredbyTestMethodF88isthecriterionforjudgingheatsealabilityemployedinthesepractices.1.8Determinationofheatsealabilityasjudgedbysealcontinuity,typicallymeasuredbyair-leak,dyepenetration,visualexamination,microorganismpenetration,orothertechniques,arenotcoveredbythesepractices.1.9ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.10Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J33
【国际标准分类号】:83_180
【页数】:8P.;A4
【正文语种】:英语


【英文标准名称】:AnchorchaincablesgradeK4-Chainoutboardshots
【原文标准名称】:K4级锚链钢缆.链条外侧连接节
【标准号】:DINV81855-1999
【标准状态】:作废
【国别】:德国
【发布日期】:1999-03
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:锚链;机械性能;水路运输工程部件;锚;造船;材料;试验;尺寸;链条
【英文主题词】:Anchorchains;Anchors;Chains;Dimensions;Materials;Mechanicalproperties;Precursors;Shipbuilding;Testing;Watertransportengineeringcomponents
【摘要】:Joiningunitsbetweenanchorchaincableandanchorarelaiddown,consistingofcommonlinks,alashinglinkifapplicable,andaswivelshackle.#,,#
【中国标准分类号】:U21
【国际标准分类号】:47_020_50
【页数】:5P.;A4
【正文语种】:德语