【英文标准名称】:StandardTestMethodforFiberLengthofWoolinScouredWoolandinCardSliver
【原文标准名称】:洗净羊毛及生条中羊毛纤维长度的测试方法
【标准号】:ASTMD1575-1990(2001)
【标准状态】:现行
【国别】:
【发布日期】:1990
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D13.13
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:纺织材料;线性测量;条子;试验;纺织纤维;长度;羊毛
【英文主题词】:length;wool;
【摘要】:Thistestmethodisnotrecommendedforacceptancetestingduetoitspoorbetween-laboratoryprecision.Insomecasesthepurchaserandthesellermayhavetotestacommercialshipmentofoneormorespecificmaterialsbythebestavailablemethodeventhoughthemethodhasnotbeenrecommendedforacceptancetestingofcommercialshipments.Insuchacase,ifthereisadisagreementarisingfromdifferencesinvaluesreportedbythepurchaserandthesellerwhenusingthismethodforacceptancetesting,thestatisticalbias,ifany,betweenthelaboratoryofthepurchaserandthelaboratoryofthesellershouldbedeterminedwitheachcomparisonbeingbasedontestingspecimensrandomlydrawnfromonesampleofmaterialofthetypebeingtested.Aknowledgeoftheaveragelengthandlengthdistributionoffibersisimportanttofiberprocessors.Thismethodisusefulforinplantcontroltestingandforresearchpurposes.1.1Thistestmethodcoverstheestimationoftheaveragefiberlengthandlengthdistributionofwoolinnonparallelassemblies,suchasscouredwool,andincardsliver.1.2Thistestmethodisapplicabletomanyfibersotherthanwoolifintheformofanonparallelassemblyorinacardsliver.1.3Thistestmethodisnotapplicabletounscouredwoolortowooltop.1.4Thistestmethodspecificallyrequireslengthininchesandmassinmetricunits,andisnotcontrarytoASTMpolicy.Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Theinformationinparenthesesisforinformationonly.Note1--ThedeterminationofstaplelengthofgreasewooliscoveredinMethodD1234,SamplingandTestingStapleLengthofGreaseWool,andtheaveragelengthoffibersinwooltopiscoveredinTestMethodD519.1.5Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W21
【国际标准分类号】:59_060_10
【页数】:3P.;A4
【正文语种】:


【英文标准名称】:StandardSpecificationforPressure-ReducingValvesforAirorNitrogenSystems
【原文标准名称】:空气或氮气系统用减压阀标准规范
【标准号】:ASTMF1795-2000
【标准状态】:现行
【国别】:美国
【发布日期】:2000
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Air;Fluidsystems;Gascircuits;Gases;Nitrogen;Pressurereducingvalves;Pressureregulators;Pressurevalves;Valves
【摘要】:
【中国标准分类号】:J16
【国际标准分类号】:23_060_10
【页数】:8P;A4
【正文语种】:英语