ASTM C1120-1998(2006) 石棉清洗试验方法

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【英文标准名称】:StandardTestMethodforWashTestofAsbestos
【原文标准名称】:石棉清洗试验方法
【标准号】:ASTMC1120-1998(2006)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:C17.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;石棉;筛选(大小)
【英文主题词】:asbestos;finescontent;washtest;wetsieving
【摘要】:Thewashtestgivesarapidandsimpleevaluationofthefinescontent.Theequipmentrequiredandthetechniquefollowedarebothsimpleandundemanding.ThefinescontentobtainedbythistestmethodapproximatestheequivalentscreenclassificationobtainedbyTestMethodsC1121andD2589.1.1Thistestmethodcoverstheprocedurefordeterminingthefinescontentofasbestosfibersbywashingwithwateronaspecifiedsieve.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Warning-Breathingofasbestosdustishazardous.Asbestosandasbestosproductspresentdemonstratedhealthrisksforusersandforthosewithwhomtheycomeintocontact.Inadditiontootherprecautions,whenworkingwithasbestos-cementproducts,minimizethedustthatresults.Forinformationonthesafeuseofchrysoltileasbestos,referto"SafeUseofChrysotileAsbestos:AManualonPreventiveandControlMeasures."Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Foraspecifichazardswarning,see.
【中国标准分类号】:Q61
【国际标准分类号】:91_100_40
【页数】:3P.;A4
【正文语种】:


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【英文标准名称】:PressureandVelocityofCenterfireRifleSportingAmmunitionfortheUseofCommercialManufacturers
【原文标准名称】:商业生产用的中心火来福运动手枪的压力和速率
【标准号】:ANSI/SAAMIZ299.4-1986
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:


【英文标准名称】:Methodsofmeasurementonreceiversforsatellitebroadcasttransmissionsinthe12GHzband.Radio-frequencymeasurementsonoutdoorunits
【原文标准名称】:12GHz频带卫星广播接收机的测量方法.第1部分:露天设备射频测量
【标准号】:BSEN61079-1-1995
【标准状态】:现行
【国别】:英国
【发布日期】:1995-08-15
【实施或试行日期】:1995-08-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:信号;接收机;无线电接收机;通信设备;电波测量;乱真信号;调制;通信链路;电路;互相调制;信号电平;射频;接收;干扰抑制;卫星通信链路
【英文主题词】:Broadcastreceivers;Circuits;Communicationequipment;Electricalengineering;Electricalwavemeasurement;Frequencymeasurement;Interferencesuppression;Intermodulation;Measurement;Measurementconditions;Measuringtechniques;Methodsformeasuring;Modulation;Noise(spurioussignals);Outdoorunits;Radiocircuits;Radioreceivers;Radiofrequencies;Receivers;Receivingstation;Reception;Satellitecommunications;Satellitelinks;Satellitereception;Signallevel;Signals;Telecommunicationlinks;Transmission
【摘要】:ThisInternationalStandardappliestotheoutdoorunitofareceiverforthedirectreceptionofsatellitebroadcasttransmissionsinthe12GHzband.ThechannelsarethosedefinedbyWARCBS-77andRARCSAT-83andthesystemsarethosedefinedinCCIRRecommendation650.Theobjectofthisstandardistodefinetheconditionsandmethodsofmeasurementtobeapplied.Thestandarddoesnotspecifyperformancerequirements.Anoutdoorunitnormallycomprisesthreemainparts,theantenna,thedepolarizerandoptionalorthomodetransducer(OMT),andtheSHFconverterasdefinedinclause1.3.ThemethodsofmeasuringtheelectricalpropertiesdescribedinthispartofthestandardapplyparticularlytotheoutdoorunitortheSHFconverter.MethodsofmeasurementontheassociatedDBStunerunitaredescribedinPart2ofthisstandard.
【中国标准分类号】:M75
【国际标准分类号】:33_060_30;33_160_20
【页数】:52P.;A4
【正文语种】:英语