LS/T 3209-1993 自发小麦粉
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来源:标准资料网
基本信息
标准名称: | 自发小麦粉 |
中标分类: |
食品 >>
食品加工与制品 >>
粮食加工与制品 |
替代情况: | 原标准号SB/T 10144-1993 |
发布日期: | 1993-03-23 |
实施日期: | 1993-10-01 |
首发日期: | |
作废日期: | |
出版日期: | |
页数: | 4页 |
适用范围
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前言
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目录
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引用标准
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所属分类: 食品 食品加工与制品 粮食加工与制品
【英文标准名称】:StandardTestMethodforTotalCyanideinWaterbyMicroDistillationfollowedbyFlowInjectionAnalysiswithGasDiffusionSeparationandAmperometricDetection
【原文标准名称】:利用气体扩散分离和安培检测法对微蒸馏后水样中总氰化物的流量注入分析(FIA)的标准试验方法
【标准号】:ASTMD7284-2008
【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】:D19.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:amperometry;cyanide;distillation;flowinjectionanalysis;gasdiffusionmembrane;totalcyanide
【摘要】:Cyanideandhydrogencyanidearehighlytoxic.Regulationshavebeenestablishedtorequirethemonitoringofcyanideinindustrialanddomesticwastesandsurfacewaters.Thistestmethodisapplicablefornaturalwaters,industrialwastewatersandeffluents.1.1Thistestmethodisusedtodeterminetheconcentrationoftotalcyanideinanaqueouswastewateroreffluent.Themethoddetectsthecyanidesthatarefree(HCNandCN-)andstrong-metal-cyanidecomplexesthatdissociateandreleasefreecyanidewhenrefluxedunderstronglyacidicconditions.1.2Thismethodmaynotbeapplicabletoprocesssolutionsfrompreciousmetalsminingoperations.1.3Thisprocedureisapplicableoverarangeofapproximately2to400x03BC;g/L(partsperbillion)totalcyanide.Higherconcentrationscanbemeasuredwithsampledilutionorlowerinjectionvolume.1.4ThedeterminativestepofthismethodutilizesflowinjectionwithamperometricdetectionbasedonTestMethodD6888.Priortoanalysis,samplesmustbedistilledwithamicro-distillationapparatusdescribedinthistestmethodorwithasuitablecyanidedistillationapparatusspecifiedinTestMethodsD2036.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardstatementsaregiveninNote2andSection9.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:6P.;A4
【正文语种】:英语
Product Code:SAE AS85421/12
Title:Fitting, Elbow, 90°, Beam Seal, 3000/4000 psi, Male to Male
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope:Scope unavailable.