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SAE AMS3798/9 Webbing, Low Modulus Aramid, 1-23/32 (44) Wide, 6,500 (28,913) Breaking Strength, Herringbone Twill Resin

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Product Code:SAE AMS3798/9
Title:Webbing, Low Modulus Aramid, 1-23/32 (44) Wide, 6,500 (28,913) Breaking Strength, Herringbone Twill Resin Treated
Issuing Committee:Ams P Polymeric Materials Committee
Scope: This specification covers one width and one strength of low-modulus aramid webbing. This product has been used in construction of parachutes, but usage is not limited to such applications. 1-23/32 inches (44 mm) wide low-modulus aramid webbing having 6,500 pounds force (28,913 N) breaking strength.
Rationale: This specification covers one width and one strength of low-modulus aramid webbing. This product has been used in construction of parachutes, but usage is not limited to such applications. 1-23/32 inches (44 mm) wide low-modulus aramid webbing having 6,500 pounds force (28,913 N) breaking strength.
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【英文标准名称】:StandardTestMethodforDeterminingtheInitialEfficiencyofMaterialsUsedinMedicalFaceMaskstoPenetrationbyParticulatesUsingLatexSpheres
【原文标准名称】:利用胶乳球测定医用面具材料粒子渗透性初始效率的标准试验方法
【标准号】:ASTMF2299-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:F23.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:测定;渗透性;面具(防护工作服);面具;球;医疗的;微粒;胶乳;效率
【英文主题词】:filtration;medicalfacemask;particlefiltrationefficiency;particles;particulate
【摘要】:Thistestmethodmeasurestheinitialfiltrationefficiencyofmaterialsusedinmedicalfacemasksbysamplingrepresentativevolumesoftheupstreamanddownstreamlatexaerosolconcentrationsinacontrolledairflowchamber.Thistestmethodprovidesspecifictesttechniquesforbothmanufacturersanduserstoevaluatematerialswhenexposedtoaerosolparticlesizesbetween0.1and5.0x03BC;m.5.2.1Thistestmethodestablishesabasisofefficiencycomparisonbetweenmedicalfacemaskmaterials.5.2.2Thistestmethoddoesnotestablishacomprehensivecharacterizationofthemedicalfacemaskmaterialforaspecificprotectiveapplication.Thistestmethoddoesnotassesstheoveralleffectivenessofmedicalfacemasksinpreventingtheinwardleakageofharmfulparticles.5.3.1Thedesignofthemedicalfacemaskandtheintegrityofthesealofthemedicalfacemasktothewearer’facearenotevaluatedinthistest.Thistestmethodisnotsuitableforevaluatingmaterialsusedinprotectiveclothingfordeterminingtheireffectivenessagainstparticulatehazards.5.4.1Ingeneral,clothingdesignisasignificantfactor,whichmustbeconsideredinadditiontothepenetrationofpenetrationofparticulates.1.1Thistestmethodestablishesproceduresformeasuringtheinitialparticlefiltrationefficiencyofmaterialsusedinmedicalfacemasksusingmonodispersedaerosols.1.1.1Thistestmethodutilizeslightscatteringparticlecountinginthesizerangeof0.1to956;5.0mandairflowtestvelocitiesof0.5to25cm/s.1.2Thetestproceduremeasuresfiltrationefficiencybycomparingtheparticlecountinthefeedstream(upstream)tothatinthefiltrate(downstream).1.3ThevaluesstatedinSIunitsorinotherunitsshallberegardedseparatelyasstandard.Thevaluesstatedineachsystemmustbeusedindependentlyoftheother,withoutcombiningvaluesinanyway.1.4Thefollowingprecautionarycaveatpertainsonlytothetestmethodsportion,Section10,ofthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C73
【国际标准分类号】:11_120_20
【页数】:8P.;A4
【正文语种】:


【英文标准名称】:StandardSpecificationforGypsumWallboard(HardMetricSizes)
【原文标准名称】:石膏墙板的标准规范
【标准号】:ASTMC1597M-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:C11.01
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:米制的;尺寸;硬的;石膏;墙板
【英文主题词】:ceiling;foil-backed;gypsum;gypsumwallboard;gypsumwallboard,typeX;metricunits;partitions;wall
【摘要】:1.1Thisspecificationcoversgypsumwallboardwhichisdesignedtobeusedforwalls,ceilings,orpartitionsandaffordsasurfacesuitabletoreceivedecoration.Note18212;SpecificationC840containsapplicationproceduresforgypsumwallboard.1.2ThevaluesarestatedinSI(metric)unitsonlyandaretoberegardedasstandard.Forgypsumwallboardproducedtoinch-poundunitsseeSpecificationC36/C36M.1.3Thetextofthisstandardreferencesnotesandfootnotesthatprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthestandard.
【中国标准分类号】:Q62
【国际标准分类号】:91_100_10
【页数】:3P.;A4
【正文语种】: