ASTM D3123-1998(2004) 低压热固性模塑料螺旋形流动的试验方法
时间:2024-05-06 17:55:24 来源: 标准资料网 作者：标准资料网 阅读：8168
【英文标准名称】:StandardTestMethodforSpiralFlowofLow-PressureThermosettingMoldingCompounds
【原文标准名称】:低压热固性模塑料螺旋形流动的试验方法
【标准号】:ASTMD3123-1998(2004)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:D20.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;流动性;静压铸件;塑料;热固性聚合物
【英文主题词】:spiralflow;thermosets
【摘要】:Thespiralflowofathermosettingmoldingcompoundisameasureofthecombinedcharacteristicsoffusionunderpressure,meltviscosity,andgelationrateunderspecificconditions.Thistestmethodisusefulasaqualitycontroltestandasanacceptancecriterion.Thistestmethod,byitself,isnotavalidmeansforcomparingthemoldabilityofsimilarordifferentmoldingcompoundsbecauseitcannotduplicateactualconditionsprevalentindifferenttypesofproductionmolds.Thistestmethodispresentlyintendedforuseatatransferpressureof6.9MPa[1000psi]andamoldtemperatureof423x00B1;3K(150x00B1;3x00B0;C[302x00B1;5x00B0;F]).1.1Thistestmethodcoversaprocedureformeasuringthespiralflowofthermosettingmoldingcompounds(softorverysoft)designedformoldingpressuresunder6.9MPa[1000psi].Itisespeciallysuitedforthosecompoundsthatmaybeusedforencapsulationorotherlowpressuremoldingtechniques.Textile-reinforcedcompoundsshouldnotbetestedusingthistestmethod.Itinvolvestheuseofastandardspiralflowmoldinatransfermoldingpressunderspecifiedconditionsofappliedtemperatureandpressurewithacontrolledchargemass.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note1ThereisnoequivalentISOstandard.
【中国标准分类号】:G31
【国际标准分类号】:83_140_99
【页数】:3P.;A4
【正文语种】:
【英文标准名称】:Protectivehelmets-Testmethods-Part7:flameresistance.
【原文标准名称】:防护头盔.试验方法.第7部分:耐燃烧性
【标准号】:NFS72-509-7/A1-2002
【标准状态】:现行
【国别】:法国
【发布日期】:2002-02-01
【实施或试行日期】:2002-02-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:头皮防护器;火焰暴露下;试验;防护帽;防护帽;阻燃性;阻燃材料;燃烧试验;安全工程;适用性;安全;可燃性;耐燃烧性;安全要求;耐火性;事故预防;防护服装
【英文主题词】:
【摘要】:
【中国标准分类号】:C73
【国际标准分类号】:13_220_40;13_340_20
【页数】:5P;A4
【正文语种】:其他
【英文标准名称】:TestMethodforPurityofHydrocarbonsfromFreezingPoints
【原文标准名称】:冰点烃纯度的测试方法
【标准号】:ANSI/ASTMD1016-2005
【标准状态】:作废
【国别】:美国
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:芳族化合物;芳烃;冻结点;涂料;石油产品;纯度;溶剂;试验
【英文主题词】:Aromaticcompounds;Aromatichydrocarbons;Freezingpoint;Paints;Petroleumproducts;Purity;Solvents;Testing
【摘要】:Thistestmethodcoversthesamplinganddeterminationofpurityofessentiallypurecompoundsforwhichthefreezingpointsforzeroimpurityandcryoscopicconstantsaregiven.Thecompoundstowhichthetestmethodisapplicableare:(Warning-Extremelyflammableliquidsandliquefiedgases.)1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSections1,6,8,and10-26.Note1Thistestmethodcoverssystemsinwhichtheimpuritiesformwiththemajorcomponentasubstantiallyidealorsufficientlydilutesolution,andalsosystemswhichdeviatefromtheideallaws,providedthat,inthelattercase,theloweringofthefreezingpointasafunctionoftheconcentrationisknownforeachmostprobableimpurityinthegivensubstance.
【中国标准分类号】:G16
【国际标准分类号】:71_080_01
【页数】:
【正文语种】:英语