NF T42-003-1987 橡胶胶乳.固体物质总含量测定

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【英文标准名称】:Milk-Determinationofnitrogencontent-Part5:Determinationofprotein-nitrogencontent(ISO8968-5:2001);GermanversionENISO8968-5:2001
【原文标准名称】:牛奶.氮含量测定.第5部分:蛋白质的氮含量测定
【标准号】:DINENISO8968-5-2002
【标准状态】:现行
【国别】:德国
【发布日期】:2002-06
【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】:滴定法;质量浓度;含量;窒塞量;牛奶;食品;食品检验;基耶达尔;氮;过滤;奶制品;空白样品;试验;含量测定;分析;实验室试验;蛋白质含量;分段法;原蛋白质;食品产品;乳制品分析;定义;抽样方法;数学计算;化学分析和试验
【英文主题词】:
【摘要】:Thisdraftstandardspecifiesamethodforthedeterminationoftheprotein-nitrogencontentinmilk.
【中国标准分类号】:X16
【国际标准分类号】:67_100_10
【页数】:12P;A4
【正文语种】:德语


【英文标准名称】:StandardTestMethodforWaterMiscibilityofWater-SolubleSolvents
【原文标准名称】:水溶性溶剂的水可混性试验方法
【标准号】:ASTMD1722-1998(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】:D01.35
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;油性涂料;溶剂;芳族化合物;水;可混性;涂料;芳烃
【英文主题词】:solvents;watermiscibilitytest
【摘要】:Water-insolublematerialspresentinasolventexpectedtobecompletelywatermisciblemayinterferewithmanyusesofthesolvent.Thistestmethodprovidesameasureofthemiscibilityofwater-solublesolventswithapolarmedium-water.Italsoprovidesaqualitativeindicationofthepresenceorabsenceofwater-immisciblecontaminants.Theresultsofthistestmethodmaybeusedinassessingcompliancewithaspecification.Priortoagreeingtothistestmethodasthebasisofaspecificationrequirement,itmaybedesirablethattheinterpretationofwhatconstitutescloudinessorturbiditybeagreeduponbetweenthesupplierandthepurchaser.1.1Thistestmethodcoversthedeterminationofthemiscibilityofwater-solublesolventswithwater.Whilewrittenspecificallyfortestingacetone,isopropylalcohol(isopropanol),andmethylalcohol(methanol),themethodissuitablefortestingmostwater-solublesolvents.1.2Thistestmethodservestodetectwater-immisciblecontaminantsqualitatively;thelevelofdetectionoftheseimpuritiesvarieswidelywithboththetypeofsolventandthetypeofimpurity.1.3Thelevelofdetectionofwater-insolublematerialsdependsuponthesolventtestedandthetypeofimpurityorimpuritiespresent,thatisparaffin,olefin,aromatic,highmolecularweightalcohol,orketone,etc.Thereis,therefore,nospecificlevelofimpuritydetectedbythisprocedure.Note18212;Thistestmethodisnormallyperformedatambient,butothertemperaturesmaybeusedasspecifiedbytheconsumerandsupplier.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.5Forspecifichazardinformationandguidance,consultthesupplier'sMaterialSafetyDataSheetformaterialslistedinthistestmethod.
【中国标准分类号】:G60
【国际标准分类号】:87_060_30(SOLVENTS)
【页数】:2P.;A4
【正文语种】: