DIN ISO 14255-1998 土壤质量.使用氯化钙溶液作萃取剂测定干空气土壤中的硝态氮,氮铵和可溶解氮总含量

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【英文标准名称】:Soilquality-Determinationofnitratenitrogen,ammoniumnitrogenandtotalsolublenitrogeninair-drysoilsusingcalciumchloridesolutionasextractant(ISO14255:1998)
【原文标准名称】:土壤质量.使用氯化钙溶液作萃取剂测定干空气土壤中的硝态氮,氮铵和可溶解氮总含量
【标准号】:DINISO14255-1998
【标准状态】:现行
【国别】:德国
【发布日期】:1998-11
【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】:土壤组分;土壤分析;可溶的;氮无机化合物;光谱测定法;测定;化学分析和试验;含量测定;萃取分析法;土壤;氮;氮含量
【英文主题词】:Chemicalanalysisandtesting;Compositionoftheground;Determination;Determinationofcontent;Extractionmethodsofanalysis;Nitrogen;Nitrogencontent;Nitrogeninorganiccompounds;Soilanalysis;Soils
【摘要】:Thedocumentdescribesproceduresfordeterminationofthesolublenitrogenfractionsnitrate,nitriteandammoniumandorganicnitrogeninsoilsusing0,01MCaClasextractant.Determinationiscarriedoutusingflowanalysissystems.
【中国标准分类号】:B11
【国际标准分类号】:13_080_10
【页数】:12P;A4
【正文语种】:德语


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【英文标准名称】:Low-voltagefuses-Supplementaryrequirementsforfuse-linksfortheprotectionofsemiconductordevices
【原文标准名称】:低压熔断器.半导体装置保护用熔断体的补充要求
【标准号】:BSEN60269-4-2007
【标准状态】:作废
【国别】:英国
【发布日期】:2007-06-29
【实施或试行日期】:2007-06-29
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:断路容量;定义;设计;分离范围;电气工程;电气设备;熔断体;熔断器;冲击器具;指示装置;低电压;低压熔断器;使用条件;特性;保护;保护设备;额定电压;半导体器件;半导体工程;半导体保险丝;规范(验收);测试;型式
【英文主题词】:Breakingcapacity;Definitions;Design;Disconnectingrange;Electricalengineering;Electricalequipment;Fuse-links;Fuses;Impactappliances;Indicationdevice;Lowvoltage;Low-voltagefuses;Operatingconditions;Properties;Protection;Protectiondevices;Ratedvoltage;Semiconductordevices;Semiconductorengineering;Semiconductorsafetyfuse;Specification(approval);Testing;Types
【摘要】:Thesesupplementaryrequirementsapplytofuse-linksforapplicationinequipmentcontainingsemiconductordevicesforcircuitsofnominalvoltagesupto1000Va.c.or1500Vd.c.andalso,insofarastheyareapplicable,forcircuitsofhighernominalvoltages.NOTE1Suchfuse-Iinksarecommonlyreferredtoas“semiconductorfuse-links”.NOTE2Inmostcases,apartoftheassociatedequipmentservesthepurposeofafuse-base.Owingtothegreatvarietyofequipment,nogeneralrulescanbegiven;thesuitabilityoftheassociatedequipmenttoserveasafusebaseshouldbesubjecttoagreementbetweenthemanufacturerandtheuser.However,ifseparatefuse-basesorfuse-holdersareused,theyshouldcomplywiththeappropriaterequirementsofIEC60269-1.
【中国标准分类号】:K31
【国际标准分类号】:29_120_50
【页数】:56P.;A4
【正文语种】:英语


MIL-M-50508A (NOTICE 1), MILITARY SPECIFICATION: MOUNT, RESILIENT (FOR USE IN AMMUNITION SHIPPING CONTAINERS) (24 MAR 1987) [NO S/S DOCUMENT]., MIL-M-50508A, dated 28 February 1975, has been reviewed and determinedto be valid for use in acquisition.