Product Code:SAE AS620
Title:Hose Assemblies, Convoluted Polytetrafluoroethylene Metallic Reinforced, High Temperature, Medium Pressure, Aircraft
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope:This SAE Aerospace Standard (AS) defines the requirements for a convoluted polytetrafluoroethylene (PTFE) lined, metallic reinforced, hose assembly suitable for use in aircraft fluid systems at temperatures of -65 to 400 掳F and at operating pressures per Table 1.【英文标准名称】:Soilquality-Determinationofabundanceandactivityofsoilmicroflorausingrespirationcurves
【原文标准名称】:土质.用生物的呼吸曲线测定土壤微植物群的个体密度和活性
【标准号】:ISO17155-2002
【标准状态】:作废
【国别】:国际
【发布日期】:2002-11
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC190
【标准类型】:()
【标准水平】:()
【中文主题词】:微生物学;测定;试验;试验报告;活性;实验室间试验;微生物分析;评定;定义;植物群;杂质;水常规(实验);土壤植物群;土壤;生物量;异养细菌;生物试验;呼吸作用;调查;萃取分析法;好气菌;土壤组分;土壤分析
【英文主题词】:Activity;Aerobicbacteria;Bioassay;Biologicaltests;Biomass;Compositionoftheground;Definitions;Determination;Ecotoxicity;Evaluations;Extractionmethodsofanalysis;Flora;Heterotrophicbacteria;Impurities;Inter-laboratorytests;Investigations;Microbiologicalanalysis;Microbiology;Respiration;Soilanalysis;Soilflora;Soils;Testing;Waterpractice
【摘要】:ThisInternationalStandardspecifiesatestmethodfordeterminingtheactivityoftheactiveaerobic,heterotrophicmicrobialbiomassinsoils.Thismethodisapplicabletothemonitoringofsoilqualityandtotheevaluationoftheecotoxicpotentialofsoilsandsoilmaterials.Itisalsoapplicabletosoilsthatarecontaminatedexperimentallyinthefieldorinthelaboratory(chemicaltesting)andforsoilssampledalongcontaminationgradientsinthefield.
【中国标准分类号】:B11
【国际标准分类号】:13_080_30
【页数】:12P.;A4
【正文语种】:英语