MIL-STD-1607A (NOTICE 1)
时间:2024-05-05 19:48:19 来源: 标准资料网 作者：标准资料网 阅读：9226
MIL-STD-1607A (NOTICE 1), MILITARY STANDARD: CHEMICAL CLEANING OF MAIN AND AUXILIARY BOILERS(SULFAMIC-CITRIC ACID METHOD (22 JAN 1992) [NO S/S DOCUMENT]., MIL-STD-1607A(SH), dated 11 August 1987, has been reviewed anddetermined to be valid for use in acquisition.
【英文标准名称】:StandardPracticeforSamplingPhytoplanktonwithPumps
【原文标准名称】:用泵取样可繁殖海洋浮游生物的标准实施规程
【标准号】:ASTMD4133-1982(2004)
【标准状态】:现行
【国别】:
【发布日期】:1982
【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】:E47.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:水质;浮游生物;资源取回;工艺;抽样方法;泵;污染控制
【英文主题词】:
【摘要】:Theadvantagesofapumpingphytoplanktonsamplerareasfollows:4.1.1Samplesizeismoreaccuratelycontrolledthanwiththeuseofaconicaltownet.4.1.2Discretesamplesfromanydepthareeasilyobtained.4.1.3Multipleorreplicatesamplesareeasilyobtained.4.1.4Theyareadaptabletoshallowecosystems.4.1.5Theyallowforastablecollectingefficiency.Thedisadvantagesofapumpingphytoplanktonsamplerareasfollows:4.2.1Theygenerallyarebulkyandfrequentlyrequireanelectricalsource.4.2.2Theygenerallyarecostly.4.2.3Theycollectonlyqualitativesamples,orsemiquantitativesampleswhenusedwithavolumeregister.Thereareseveralspecialconsiderationsthatshallbeobservedwhenusingapumpingphytoplanktonsampler.Theyareasfollows:4.3.1Pumpscaninducemortalityoftheorganismsanddamagethedelicateforms.4.3.2Iftubingisnotproperlycleanedafteruse,contaminationofsubsequentsamplescanensue.1.1Thispracticecoverstheproceduresforobtainingqualitativesamplesofaphytoplanktoncommunitybyuseofpumpingsystems.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:
【页数】:2P.;A4
【正文语种】:
【英文标准名称】:Specificationformasonryunits-Part3:Aggregateconcretemasonryunits(Denseandlight-weightaggregates);GermanversionEN771-3:2003+A1:2005
【原文标准名称】:圬工单位规范.第3部分:集料混凝土圬工单位(密实和轻质集料)
【标准号】:EN771-3-2005
【标准状态】:现行
【国别】:
【发布日期】:2005-05
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:材料;CE标记;吸水率;定义;砖;试验;公差(测量);合格评定;测定;松散材料密度;水蒸气渗透性;密度;混凝土集料;尺寸;孔隙率;集料;抽样方法;名称与符号;加气混凝土;混凝土外加剂;圬工;规范(验收);交货条件;材料强度;施工材料;分类;作标记;抗压强度;材料规范;砌砖工作;特性;噪声控制;质量控制;混凝土块;建筑;混凝土;防火安全
【英文主题词】:Aeratedconcretes;Aggregates;Aggregatesforconcrete;Bricks;Brickwork;Bulkdensity;CEmarking;Classification;Compressivestrength;Concreteadmixtures;Concreteaggregates;Concreteblocks;Concretes;Conformityassessment;Construction;Constructionmaterials;Definition;Definitions;Deliveryconditions;Density;Designations;Determination;Dimensions;Firesafety;Marking;Masonry;Materials;Materialsspecification;Noisecontrol(acoustic);Porosity;Properties;Qualitycontrol;Samplingmethods;Specification;Specification(approval);Strengthofmaterials;Testing;Tolerances(measurement);Waterabsorption;Watervapourpermeability
【摘要】:
【中国标准分类号】:P24
【国际标准分类号】:91_100_30
【页数】:36P.;A4
【正文语种】:英语