BS 5045 Pt.5-1986 可运输的气体容器.第5部分:大于0.5L至130L水容量的焊接铝合金气体容器规范

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【英文标准名称】:Specificationforsaffron
【原文标准名称】:藏红花香料规范
【标准号】:BS6145-1994
【标准状态】:作废
【国别】:英国
【发布日期】:1994-04-15
【实施或试行日期】:1994-04-15
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:等级(质量);作料;食品;香料;包装;试样;化学成分;纯度;作标记;味觉;颜色;藏红花香料
【英文主题词】:chemicalcomposition;taste;purity;spices;testspecimens;saffron;packaging;seasonings;colour;foodproducts;grades(quality);marking
【摘要】:
【中国标准分类号】:C23;B38
【国际标准分类号】:67_220_10
【页数】:12P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforHydroxylGroupsUsingReactionwithp-ToluenesulfonylIsocyanate(TSI)andPotentiometricTitrationwithTetrabutylammoniumHydroxide
【原文标准名称】:利用与P-甲苯磺酰异氰酸盐(TSI)的反应和氢氧化四丁基铵的电势滴定法的羟基标准试验方法
【标准号】:ASTME1899-2008
【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】:E15.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:hydroxylnumber;p-Toluenesulfonylisocyanate;polyacetals;polyols;potentiometrictitration;tetrabutylammoniumhydroxide;Hydroxylgroups;Potentiometrictitration;Tetrabutylammoniumhydroxide;p-Toluenesulfonyl
【摘要】:Hydroxylisanimportantfunctionalgroupandknowledgeofitscontentisrequiredinmanyintermediateandenduseapplications.Thistestmethodisforthedeterminationofprimaryandsecondaryhydroxylgroupsandcanbeusedfortheassayofcompoundscontainingthem.Thistestmethodhasthefollowingadvantagesoverotherhydroxylnumbermethods:Itisrapid(10min),pyridine-free,ambienttemperature,smallsamplesize,applicabletoextremelylowhydroxylnumbers(x003C;1),andisamenabletoautomation.1.1Thistestmethodcoversthedeterminationofhydroxylgroupsattachedtoprimaryandsecondarycarbonatomsinaliphaticandcycliccompoundsandphenols.Itisnotsuitablefordeterminationofhydroxylgroupsattachedtotertiarycarbonatoms.Thistestmethodisapplicabletopolyacetals,temperaturesensitivematerials,highsolidspolymerpolyols,andrigidpolyols.OtheravailabletestmethodslistedinNote1arenotsuitableformanyofthesampletypeslistedabove.1.1.1Thistestmethodiscurrentlyrecommendedforneutralrefinedproducts.Successfulapplicationhasbeenmade,however,tosomein-processsamplesthatcontainanexcessofacidicspecies.Propervalidationmustbeperformed,ofcourse,toshowthattheacidicspecieseitherdoesnotinterfere,orthattheacidicspeciesinterferencehasbeenobviated.Note18212;OthermethodsfordeterminationofhydroxylgroupsaregiveninTestMethodsD817,D871,D1957,D2195,D4252,D4273,D4274,E222,E326,andE335.1.2ReviewthecurrentappropriateMaterialSafetyDataSheets(MSDS)fordetailedinformationconcerningtoxicity,firstaidprocedures,andsafetyprecautions.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associated,withitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.ForspecifichazardsseeSection9.
【中国标准分类号】:G17
【国际标准分类号】:71_040_40
【页数】:5P.;A4
【正文语种】:英语