【英文标准名称】:StandardTestMethodforRelativeMolecularMass(MolecularWeight)ofHydrocarbonsbyThermoelectricMeasurementofVaporPressure
【原文标准名称】:蒸气压力热电测量法测定烃类相对分子质量(分子量)的标准试验方法
【标准号】:ASTMD2503-1992(2007)
【标准状态】:现行
【国别】:美国
【发布日期】:1992
【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】:D02.04.0D
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:hydrocarbons;molecularweight;osmometer;relativemolecularmass;thermoelectricmeasurement;vaporpressure;Hydrocarbons;Molecularweight;Relativemolecularmass;Vaporpressure(VPx)--petroleumproducts
【摘要】:Relativemolecularmass(molecularweight)isafundamentalphysicalconstantthatcanbeusedinconjunctionwithotherphysicalpropertiestocharacterizepurehydrocarbonsandtheirmixtures.Aknowledgeoftherelativemolecularmass(molecularweight)isrequiredfortheapplicationofanumberofcorrelativemethodsthatareusefulindeterminingthegrosscompositionoftheheavierfractionsofpetroleum.1.1Thistestmethodcoversthedeterminationoftheaveragerelativemolecularmass(molecularweight)ofhydrocarbonoils.Itcanbeappliedtopetroleumfractionswithmolecularweights(relativemolecularmass)upto3000;however,theprecisionofthistestmethodhasnotbeenestablishedabove800molecularweight(relativemolecularmass).Thistestmethodshouldnotbeappliedtooilshavinginitialboilingpointslowerthan220x00B0;C.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,5.2.1,5.2.3,and5.2.3.
【中国标准分类号】:G16
【国际标准分类号】:75_080
【页数】:3P.;A4
【正文语种】:英语


【英文标准名称】:Rollersportsequipment-Inline-skates-Safetyrequirementsandtestmethods;EnglishversionofDINEN13843:2009-08
【原文标准名称】:滚轴运动设备.单排轮滑板.安全性要求和试验方法.英文版本DINEN13843-2009-08
【标准号】:DINEN13843-2009
【标准状态】:现行
【国别】:德国
【发布日期】:2009-08
【实施或试行日期】:2009-08-01
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;家庭安全性;设备安全性;制造商提供的信息;直排溜冰鞋;作标记;材料;器械运动器材;安全性;安全工程;安全性要求;滑板运动设施;规范(验收);体育器材;试验;用户信息
【英文主题词】:Definitions;Domesticsafety;Equipmentsafety;Informationsuppliedbythemanufacturer;Inline-Skates;Marking;Materials;Mechanicalsportsequipment;Safety;Safetyengineering;Safetyrequirements;Skateboardingfacilities;Specification(approval);Sportsequipment;Testing;Userinformation
【摘要】:Thisstandardisapplicabletoinline-skatesintendedforuserswithabodymassofmorethan20kgandlessthan100kg.Itspecifiessafetyrequirementsforinline-skates,specificationsfortestmethods,markingandinformationsuppliedbythemanufacturertoreducetheriskofinjuriestoboththirdpartiesandtheuserduringtheirnormaluse.Inline-skatesforusebyarideroflessthan20kgdonotbelongtothescopeofthisEuropeanStandard.Theyaretoys.ThisStandarddoesnotapplytorollerskatesaccordingtoEN13899.NOTERequirementsforinline-skatesfromtheorthopedicpointofviewsuchaslateralsupportorsimilarwerenotincludedinthisstandardbecausetheserequirementsdifferfromwearerandthereforecannotbecoveredbyastandard.
【中国标准分类号】:Y55
【国际标准分类号】:97_220_40
【页数】:16P.;A4
【正文语种】:英语