NF E29-128-1952 低压气体阀门.连接管节和端焊装置的操纵阀.阀体.结构部件
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来源:标准资料网
【英文标准名称】:CONTROLCOCKSFORAPPLIANCESWITHUNIONCOUPLINGANDWELDINGENDFORLOWPRESSUREGASEQUIPMENT.BODY.ELEMENTSOFCONSTRUCTION.
【原文标准名称】:低压气体阀门.连接管节和端焊装置的操纵阀.阀体.结构部件
【标准号】:NFE29-128-1952
【标准状态】:作废
【国别】:法国
【发布日期】:1952-08
【实施或试行日期】:1952-08-31
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:作标记;规范;气阀;低压管;压力管;阀体;旋塞阀;燃气管路;阀门和配件;阀门;材料规范;控制器;排放旋塞;尺寸;联接丝锥;控制龙头
【英文主题词】:
【摘要】:
【中国标准分类号】:J16
【国际标准分类号】:
【页数】:1P;A4
【正文语种】:其他
【英文标准名称】:StandardGuideforSelectionofMethodsofParticleSizeAnalysisofFluvialSediments(ManualMethods)
【原文标准名称】:河水中沉淀物粒度分析方法的选择标准指南(手工方法)
【标准号】:ASTMD4822-1988(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1988
【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】:D19.07
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:particlesize;sediment;Particleanalysis--water;Samplingwateranalysisapplications;Sediment;Statisticalmethods--wateranalysis;Wastewatertesting/treatment
【摘要】:Thisguideisgeneralandusefulinhelpingtheusertodetermineanappropriatemanualtestmethodfordeterminingtheparticlesizedistributionoffluvialsediments.Thesuggestedtestmethodsarenotdescribedinthisguide,butreferencesaregivensothattheusermayobtainmoreinformationabouteachtestmethod.Itshouldbenotedthatdifferenttestmethodsmayandoftentimesdoproducedifferentparticlesizedistributionsforthesamesample.Thisisdueinparttothedifferenttestmethodsrequiringnativeordistilledwater,differencesindispersionmethodsused,anddifferencesinwhatthetestmethodismeasuring,thatis,physicalorsedimentationdiameter.1.1Thisguidecoverstheselectionofmethodsfordeterminingthesizedistributionoffluvialsedimentsparticlesintherangegreaterthan0.45x03BC;musingmanualmethods.Manualmethodsaredefinedasthosemethodsthatrequiretheoperatortodosomeactualmeasurementsandcalculations.Anautomatedmethodwouldbeonewhich,afterthesampleispreparedandinsertedintoaninstrument,theinstrument(machine)doesthemeasuringandcalculations,nottheoperator.Notallmanualmethodsarepresentedinthisguide.However,whereavailable,atleasttwomethodsforeachparticlesizerangearegiven.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:
【页数】:3P.;A4
【正文语种】:英语
Product Code:SAE AMS3237
Title:Butyl (Iir) Rubber, Phosphate Ester Resistant, 35-45
Issuing Committee:Ams Ce Elastomers Committee
Scope: This specification covers a butyl (IIR) rubber in the form of sheet, strip, extrusions, and molded shapes.These products have been used typically for parts, such as diaphragms, gaskets, grommets, and seals, requiring resistance to phosphate esters or low permeability to gases, but usage is not limited to such applications. The material is not suitable for use in contact with petroleum-base fluids due to excessive swell. Each application should be considered individually.
Rationale: This specification covers a butyl (IIR) rubber in the form of sheet, strip, extrusions, and molded shapes.These products have been used typically for parts, such as diaphragms, gaskets, grommets, and seals, requiring resistance to phosphate esters or low permeability to gases, but usage is not limited to such applications. The material is not suitable for use in contact with petroleum-base fluids due to excessive swell. Each application should be considered individually.
