Product Code:SAE J700
Title:Upper Coupler Kingpin--Commercial Trailers and Semitrailers
Issuing Committee:Truck And Bus Total Vehicle Steering Committee
Scope:This SAE Standard applies to upper coupler kingpins for commercial trailers and semitrailers in the unladen condition. See Figure 1. A 90 degree ± 1 degree angle extends (in all directions) from the centerline of the kingpin to the upper coupler plate surface within a 48.26 cm (19 in) radius. The upper coupler plate surface should not bow downward (convex) more than 0.635 cm (1/4 in) within a 48.26 cm (19 in) radius or more than 0.3175 cm (1/8 in) at a radius of 25.4 cm (10 in) from the kingpin. The upper coupler plate surface should not bow upward (concave) more than 0.15875 cm (1/16 in) within a 48.26 cm (19 in) radius. (See Figure 2.)NOTE--For recommended performance, see SAE J133.【英文标准名称】:StandardPracticeforMeasuringtheConcentrationofToxicGasesorVaporsUsingLength-of-StainDosimeters
【原文标准名称】:用锈蚀长度计量计测定有毒气体或蒸气浓度的标准实施规程
【标准号】:ASTMD4599-2003
【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】:D22.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:测量;空气;有毒气体;保健;浓缩;蒸气;含量测定;职业安全
【英文主题词】:airmonitoring;calorimetricdosimetertubes;diffusionalsampling;dosimetertubes;samplingandanalysis;toxicgasesandvapors;workplaceatmospheres
【摘要】:TheFederalOccupationalSafetyandHealthAdministrationin29CFR1910.1000SubpartZdesignatesthatcertaingasesandvaporspresentinworkplaceatmospheresmustbecontrolledsothattheirconcentrationsdonotexceedspecifiedlimits.Thispracticewillprovideameansforthedeterminationofairborneconcentrationsofcertaingasesandvaporslistedin29CFR1910.1000.ApartiallistofchemicalsforwhichthispracticeisapplicableispresentedinAnnexA1withcurrentThresholdLimitValues(TLV)(2)andtypicalmeasurementrangesfortheselectedchemicalsasobtainedfromvariousmanufacturer’specifications.Thispracticemaybeusedforeitherpersonalorareamonitoring.1.1Thispracticedescribesthedetectionandmeasurementoftimeweightedaverage(TWA)concentrationsoftoxicgasesorvaporsusinglength-of-staincolorimetricdosimetertubes.AlistofsomeofthegasesandvaporsthatcanbedetectedbythispracticeisprovidedinAnnexA1.Thislistisgivenasaguideandshouldbeconsideredneitherabsolutenorcomplete.1.2Length-of-staincolorimetricdosimetersworkbydiffusionalsampling.Theresultsareimmediatelyavailablebyvisualobservation;thusnoauxiliarysampling,testnoranalysisequipmentareneeded.Thedosimeters,therefore,areextremelysimpletouseandverycosteffective.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z15
【国际标准分类号】:13_320
【页数】:4P.;A4
【正文语种】: