QC/T 446-1999 鞍式牵引车牵引座

作者:标准资料网 时间:2024-05-15 20:29:50   浏览:9675   来源:标准资料网
下载地址: 点击此处下载
基本信息
标准名称:鞍式牵引车牵引座
中标分类: 车辆 >> 挂车 >> 牵引装置
替代情况:原标准号ZB T72001-87
发布日期:1900-01-01
实施日期:1999-03-15
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
页数:5页
适用范围

没有内容

前言

没有内容

目录

没有内容

引用标准

没有内容

所属分类: 车辆 挂车 牵引装置
下载地址: 点击此处下载
【英文标准名称】:StandardSpecificationforPoly(VinylChloride)(PVC)CorrugatedSewerPipeWithaSmoothInteriorandFittings
【原文标准名称】:光滑内壁聚氯乙烯(PVC)波纹污水管和配件的标准规范
【标准号】:ASTMF949a-2006
【标准状态】:现行
【国别】:美国
【发布日期】:2006
【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】:建筑;配件;管;塑料管;塑料制品;聚氯乙烯;污水管
【英文主题词】:Construction;Fittings;Pipes;Plasticpipes;Plasticsproducts;Polyvinylchloride;Sewerpipes
【摘要】:
【中国标准分类号】:
【国际标准分类号】:23_040_20;23_040_45
【页数】:10P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforConductingOutdoorSoundMeasurementsUsingaDigitalStatisticalSoundAnalysisSystem
【原文标准名称】:使用数字统计声分析系统测量室外声级的标准试验方法
【标准号】:ASTME1503-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:E33.09
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:声学测量;声学;露天;统计学
【英文主题词】:acousticalenvironment;analysis;calibration;communitynoise;datastorage;digital;equipment;interferences;loudness;measurement;measurementplan;meteorologicaleffects;microphonesystem;outdoor;precautions;procedures;soundlevel
【摘要】:1.1Thistestmethodcoversthemeasurementofoutdoorsoundlevelsatspecificlocationsusingadigitalstatisticalsoundanalysissystemandaformalmeasurementplan.1.1.1Thistestmethodprovidesbasicrequirementsforobtainingeitherasinglesetofdataormultiplesetsofrelateddata.However,becausetherearenumerouscircumstancesandvariedobjectivesrequiringmultiplesetsofdata,thetestmethoddoesnotaddressplanningofthemeasurementprogram.1.2Theuseofresultsofmeasurementsperformedusingthistestmethodinclude,butarenotlimitedto,thefollowing:1.2.1Tocharacterizetheacousticalenvironmentofasite,1.2.2Tocharacterizethesoundemissionsofaspecificsoundsourcewhichexhibitsatemporalvariationinsoundoutput,and1.2.3Tomonitortheeffectivenessofanoiseimpactmitigationplan.1.3Thistestmethodisintendedtobeusedinconjunctionwithameasurementplanthatreferencesthistestmethod.Changesoradditionstotheprovisionsofthistestmethodshallbeclearlystatedintheplan.1.3.1Intheeventitisnecessary,forexample,becauseoftimeconstraints,toconductmeasurementswithoutfirstformalizingaplan,thistestmethodcanbeusedifanoperator/observerwhosequalificationsaresatisfactorytoboththeperformingorganizationandtheclientispresentatalltimesduringthemeasurementsandwhocomplies,totheextentpossible,withalltheapplicablerequirementsofthistestmethod,includingrecordkeeping.1.4Thedataobtainedusingthistestmethodenablecomparisonofsoundleveldatawithappropriatecriteria.1.4.1Thedataobtainedwiththistestmethodcanbeusedinthederivationofloudnesslevelsprovidedthenecessaryrequirementsregardingsampledurationandsignalbandwidthareobservedincollectingthedata.Itisrecommendedthataspecialistintheareaofloudnessevaluationbeconsultedinpreparingaplanformeasurementsintendedtoproducedatawhichwillbeusedforthispurpose.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A59
【国际标准分类号】:
【页数】:7P.;A4
【正文语种】: