BS EN 27841-1991 自动凝汽阀蒸汽损失的测定方法
时间:2024-05-19 12:35:42 来源: 标准资料网 作者：标准资料网 阅读：9849
【英文标准名称】:Methodsfordeterminationofsteamlossofautomaticsteamtraps
【原文标准名称】:自动凝汽阀蒸汽损失的测定方法
【标准号】:BSEN27841-1991
【标准状态】:现行
【国别】:英国
【发布日期】:1991-11-29
【实施或试行日期】:1991-11-29
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:疏水阀;自动;公式;热测量;性能试验;试验条件;蒸汽工程;热量测量;试验设备;疏水器
【英文主题词】:
【摘要】:ThisInternationalStandardspecifiestwotestmethodstodeterminethesteamlossofautomaticsteamtrapstoISO6552.Theobjectofthesetestsistodeterminetheamountoflivesteam,ifany,thatislostthroughthesteamtrap.Theyare,therefore,teststoevaluatetheabilityofthetrapstoshutagainststeamduringsuccessiveoperations.Thereisnomeasurementofthetotalheatenergylostbythetrap.Suchtotalheatlosswouldincluderadiationandconvec-tioncomponentswhichcanbeestablishedseparately.
【中国标准分类号】:J77
【国际标准分类号】:23_040_99
【页数】:20P;A4
【正文语种】:英语
【英文标准名称】:Waterquality-Biologicalclassificationofrivers-Part1:Guidanceontheinterpretationofbiologicalqualitydatafromsurveysofbenthicmacroinvertebrates(ISO8689-1:2000);GermanversionENISO8689-1:2000
【原文标准名称】:水质.江河的生物分类.第1部分:对底栖微型无脊椎动物调查的生物质量数据的解释指南
【标准号】:DINENISO8689-1-2000
【标准状态】:现行
【国别】:德国
【发布日期】:2000-08
【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】:水常规;质量;解释;助熔剂;河流;生物系统;水生生物学;分类;水质;淡水;导则;抽样方法;内部保护关键;稳定性(机械性能);流水;生物分析和试验;生物测定;无脊椎动物;等级(质量);分类系统;水;水质试验;数据分析
【英文主题词】:
【摘要】:
【中国标准分类号】:Z16
【国际标准分类号】:13_060_10
【页数】:14P;A4
【正文语种】:德语
Product Code:SAE AIR4713
Title:Aerospace - Chlorinated Solvent Contamination of Mil-H-5606/Mil-H-83282 Vehicle Hydraulic Systems
Issuing Committee:A-6c3 Fluids Committee
Scope:Although there is controversy regarding the chemical form of chlorine and its relation to harmful effects in the hydraulic fluid (i.e., chloride ions versus organic chloro-compounds versus total chlorine in all forms), it is generally agreed that total chlorine content should be measured and controlled. In the near future, the ban on the manufacture of chlorinated solvents, out of concern for depletion of the ozone layer, may in itself diminish or eliminate chlorine contamination related aircraft malfunctions. It is generally accepted that hydraulic fluid contamination should be held to a minimum under all conditions. The benefits of low contamination levels are improved performance, lower maintenance due to lower wear, corrosion and erosion, longer fluid life, longer component life, etc.