NF A72-120-1973 气态液体用大直径管道和阀.带法兰的接头(PN6)
时间:2024-05-07 07:16:03 来源: 标准资料网 作者：标准资料网 阅读：8433
【英文标准名称】:Largediameterpipesandvalvesforgaseousfluids.FlangeconnectionsPN6.
【原文标准名称】:气态液体用大直径管道和阀.带法兰的接头(PN6)
【标准号】:NFA72-120-1973
【标准状态】:现行
【国别】:法国
【发布日期】:1973-06-01
【实施或试行日期】:1973-06-14
【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】:名称与符号;燃气管道;钢铁厂;法兰连接;产品规范;插板阀;炼钢;工业设施;设备规范;尺寸;法兰管件
【英文主题词】:
【摘要】:
【中国标准分类号】:H92
【国际标准分类号】:77_180
【页数】:6P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodforDeterminationofPropertiesofPolymericMaterialsbyMeansofaCapillaryRheometer
【原文标准名称】:用毛细管流变仪测定聚酯材料性能的标准试验方法
【标准号】:ASTMD3835-2008
【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】:D20.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:capillary;plastics;polymers;rheology;thermalflow;viscosity;Capillaryrheometermethod;Flowandflowrate--thermoplastics;Meltviscosity;Polymers;Rheology/rheologicalproperties--plastics;Sheartesting--plastics;Stress--plastics;Thermopl
【摘要】:Thistestmethodissensitivetopolymermolecularweightandmolecularweightdistribution,polymerstabilityx2014;boththermalandrheological,shearinstability,andadditivessuchasplasticizers,lubricants,moisturereinforcements,orinertfillers,orcombinationthereof.Thesensitivityofthistestmethodmakesthedatausefulforcorrelatingwithprocessingconditionsandaidsinpredictingnecessarychangesinprocessingconditions.UnlikeTestMethodD1238,whichmakesaone-pointmeasureatashearratetypicallybelowprocessingconditions,thistestmethoddeterminestheshearsensitivityandflowcharacteristicsatprocessingshearrates,andthereforecanbeusedtocomparematerialsofdifferentcompositions.1.1Thistestmethodcoversmeasurementoftherheologicalpropertiesofpolymericmaterialsatvarioustemperaturesandshearratescommontoprocessingequipment.Itcoversmeasurementofmeltviscosity,sensitivity,orstabilityofmeltviscositywithrespecttotemperatureandpolymerdwelltimeintherheometer,dieswellratio(polymermemory),andshearsensitivitywhenextrudingunderconstantrateorstress.Thetechniquesdescribedpermitthecharacterizationofmaterialsthatexhibitbothstableandunstablemeltviscosityproperties.1.2Thistestmethodhasbeenfoundusefulforqualitycontroltestsonbothreinforcedandunreinforcedthermoplastics,curecyclesofthermosettingmaterials,andotherpolymericmaterialshavingawiderangeofmeltviscosities.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.Note18212;AlthoughthistestmethodandISO11443x2013;1995,x201C;Plasticx2014;DeterminationoftheFluidityofPlasticsUsingCapillaryandSlit-DieRheometersx201D;differinapproachordetail,thedataobtainedusingISO11443,MethodAistechnicallyequivalenttothistestmethod1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:11P.;A4
【正文语种】:英语
【英文标准名称】:Classificationofenvironmentalconditions.GuidanceforthecorrelationandtransformationofenvironmentalconditionclassesofIEC60721-3totheenvironmentaltestsofIEC60068.Portableandnon-stationaryuse
【原文标准名称】:环境条件分类.IEC60721-3的环境条件等级与IEC60068的环境试验的相互关系和换算导则.便携式和非固定使用
【标准号】:PDIECTR60721-4-7-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-02-19
【实施或试行日期】:2002-02-19
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:电气设备;便携的;电子设备及元件;分类系统;静止的;固定的;环境试验;电气元件;工作环境
【英文主题词】:environment(working);stationary;electronicequipmentandcomponents;portable;electricalequipment;environmentaltesting;electricalcomponents;classificationsystems
【摘要】:ThispartisatechnicalreportdealingwiththecorrelationandtransformationoftheconditionsgiveninIEC60721-3-7totheenvironmentaltestsasdefinedinIEC60068-2.
【中国标准分类号】:A21
【国际标准分类号】:19_040
【页数】:32P;A4
【正文语种】:英语