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GB/T 3050-2000 无机化工产品中氯化物含量测定的通用方法 电位滴定法

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基本信息
标准名称:无机化工产品中氯化物含量测定的通用方法 电位滴定法
英文名称:Inorganic chemical products for industrial use;General method for determination of chloride content;Potentiometric method
中标分类: 化工 >> 无机化工原料 >> 无机化工原料综合
ICS分类: 化工技术 >> 分析化学 >> 化学分析
替代情况:GB/T 3050-1982
发布部门:中华人民共和国国家质量监督检验检疫总局
发布日期:2000-07-03
实施日期:2001-03-01
首发日期:1982-04-03
作废日期:1900-01-01
主管部门:中国石油和化学工业协会
归口单位:全国化学标准化技术委员会
起草单位:天津化工研究院
出版社:中国标准出版社
出版日期:2004-04-01
页数:平装16开/页数:/字数:
书号:155066.1-17223
适用范围

本标准规定了无机化工产品中氯化物含量测定的通用方法--电位滴定法。本标准适用于氯离子含量在1mg/L~1500mg/L的试验溶液。分取用于滴定的试验溶液中氯化物(以Cl计)含量为0.01mg~75mg,当使用的硝酸银标准溶液浓度小于0.02mol/L时,滴定应在乙醇-水溶液中进行。

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所属分类: 化工 无机化工原料 无机化工原料综合 化工技术 分析化学 化学分析
Product Code:SAE J257
Title:Brake Rating Power Requirements鈥擳ruck and Bus
Issuing Committee:Truck And Bus Brake Systems Committee
Scope:The minimum performance values in this SAE Recommended Practice are applicable to vehicles with brake systems having typical service pressure ranges 0 to 16.6 MPa (0 to 2400 psi) hydraulic or 0 to 945 kPa (0 to 135 psi) air only. SAE J880 not only provides for determining maximum brake rating power capability, but also permits verification of any desired or arbitrary level such as the requirement established herein. The determining criteria for deciding brake rating power capability are:a.Cold brake stopping ability.b.Fade as a result of brake power absorption.c.Hot brake stopping ability following brake power absorption.d.Brake system stability following brake power absorption.e.Functional and structural integrity of brake system following test.【英文标准名称】:StandardPracticeforCoreSamplingofRawWoolinPackagesforDeterminationofPercentageofCleanWoolFiberPresent
【原文标准名称】:为测定净毛纤维百分率从成包原毛中进行钻芯取样的标准实施规程
【标准号】:ASTMD1060-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D13.13
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:sampling;woolcontent;Samplingtextiles;Woolandwooltop--raw;Woolandwooltop--sampling;Woolcontent--rawwool
【摘要】:Coresamplingiswidelyaccepted,whenapplicable,forobtainingalaboratorysamplerepresentativeofthecleanwoolfiberpresentinalotofpackagedrawwool.Ifthewoolissolooselypackedthatacorecannotbecut,orifitissohighlycompressedthatthesamplingtoolcannotreadilypenetrateintothepackagetotherequireddepthandintherequireddirection,coresamplingisnotapplicable.Thedensityofwoolinmosttypesofcommercialpackagesissuitableforsamplingbythismethod.Theproceduredescribedinthispracticeisadaptedtotheapplicationofstatisticalmethodsforestimatingthesizeofsamplerequiredtoachievearequiredlevelofsampleprecisionatminimumcost.Note18212;Thebasicsamplingequipment,operatingprocedure,andstatisticalapproachusedinthispracticehavebeenadaptedforsamplinglotsofwoolforthedeterminationofotherpropertiesthatarenotaffectedbyboring,suchasaveragefiberdiameter,andforsamplinglotsofotherbulkfibersinpackages.1.1Thispracticeforsamplingcoversaprocedureforobtainingsamplesfromlotsofgrease,pulled,orscouredwoolorrelatedanimalfibersinbalesorbagsforthedeterminationofthecleanwoolfiberpresentbyaproceduresimilartothatdescribedinTestMethodD584.1.2Thispracticeprovidesadescriptionofsuitablecoresamplingequipment,thesamplingprocedure,andthemethodfordeterminingthenumberofpackagestobeboredandthenumberofcorestobetakenfromeachsampledpackage.1.3Reliableestimatesaregivenforthestandarddeviationofthepercentagecleanwoolfiberpresentbetweenpackagesandwithinpackagesforlotsofmanytypesofrawwool.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W20
【国际标准分类号】:59_060_10
【页数】:9P.;A4
【正文语种】:英语