JB/T 5325-1991 均速管流量传感器
作者:标准资料网 时间:2024-05-18 14:02:18 浏览:8279
来源:标准资料网
基本信息
| 标准名称： | 均速管流量传感器 |
| 中标分类： |
仪器、仪表 >>
工业自动化仪表与控制装置 >>
流量与物位仪表 |
| 发布日期： | 1991-07-09 |
| 实施日期： | 1992-07-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 归口单位： | 重庆工业自动化仪表所 |
| 出版日期： | 1900-01-01 |
| 页数： | 16 页 |
适用范围
本标准规定了均速管流量传感器（以下简称传感器）的术语，产品分类、技术要求、试验方法及检验规则等。本标准适用于测量液体、气体及蒸汽的均速管流量传感器，在特殊条件下使用的传感器亦可参照使用。
前言
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所属分类： 仪器 仪表 工业自动化仪表与控制装置 流量与物位仪表
【英文标准名称】:StandardTestMethodforDeterminingFormaldehydeConcentrationinAirfromWoodProductsUsingaSmallScaleChamber
【原文标准名称】:用小型室测定空气中来自木制品的甲醛浓度的标准试验方法
【标准号】:ASTMD6007-2002
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:D07.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:airborne;chromotropicacidanalysis;formaldehydeconcentrationinair;smallchamber;small-scaletest;woodproducts;
【摘要】:Limitationsonformaldehydelevelshavebeenestablishedforwoodpanelbuildingproductsmadewithurea-formaldehydeadhesivesandpermanentlyinstalledinhomesorusedascomponentsinkitchencabinetsandsimilarindustrialproducts.ThistestmethodisintendedforuseinconjunctionwiththetestmethodreferencedbyHUDRulesandRegulations24CFR3280formanufacturedhousingandbyMinnesotaStatutesSection144.495forhousingunitsandbuildingmaterials.Thistestmethodprovidesameansoftestingsmallersamplesandreducesthetimerequiredfortesting.Formaldehydeconcentrationlevelsobtainedbythissmall-scalemethodmaydifferfromexpectedinfull-scaleindoorenvironments.Variationsinproductloading,temperature,relativehumidity,andairexchangewillaffectformaldehydeemissionratesandthuslikelyindoorairformaldehydeconcentrations.Thistestmethodrequirestheuseofachamberof0.02to1m3involumetoevaluatetheformaldehydeconcentrationinairusingthefollowingcontrolledconditions:4.3.1Conditioningofspecimenspriortotesting,4.3.2Exposedsurfaceareaofthespecimensinthetestchamber,4.3.3Testchambertemperatureandrelativehumidity,4.3.4TheQ/Aratio,and4.3.5Aircirculationwithinthechamber.1.1Thistestmethodmeasurestheformaldehydeconcentrationsinairfromwoodproductsunderdefinedtestconditionsoftemperatureandrelativehumidity.Resultsobtainedfromthissmall-scalechambertestmethodareintendedtobecomparabletoresultsobtainedtestinglargerproductsamplesbythelargechambertestmethodforwoodproducts,TestMethodE1333.TheresultsmaybecorrelatedtovaluesobtainedfromTestMethodE1333.ThequantityofformaldehydeinanairsamplefromthesmallchamberisdeterminedbyamodificationoftheNationalInstituteforOccupationalSafetyandHealth(NIOSH)3500chromotropicacidtestprocedure.Otheranalyticalproceduresmaybeusedtodeterminethequantityofformaldehydeintheairsampleprovidedthatsuchmethodsgiveresultscomparabletothoseobtainedbyusingthechromotropicacidprocedure.However,thetestresultsandtestreportmustbeproperlyqualifiedandtheanalyticalprocedureemployedmustbeaccuratelydescribed.1.2Thewood-basedpanelproductstobetestedbythistestmethodarecharacteristicallyusedfordifferentapplicationsandaretestedatdifferentrelativeamountsorloadingratiostoreflectdifferentapplications.Thisisatestmethodthatspecifiestestingatvariousloadingratiosfordifferentproducttypes.However,thetestresultsandtestreportmustbeproperlyqualifiedandmustspecifythemake-upairflow,samplesurfacearea,andchambervolume.1.3Idealcandidatesforsmall-scalechambertestingareproductsrelativelyhomogeneousintheirformaldehydereleasecharacteristics.Still,productinhomogeneitiesmustbeconsideredwhenselectingandpreparingsamplesforsmall-scalechambertesting.1.4ThevaluesstatedinSIunitsarethestandardvalues.Anyvaluesgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Y80
【国际标准分类号】:13_040_20
【页数】:9P.;A4
【正文语种】:
【英文标准名称】:Earth-movingmachinery--Operationandmaintenance--Maintainabilityguidelines
【原文标准名称】:土方机械.运行和维护.维修性指南
【标准号】:JISA8337-2009
【标准状态】:现行
【国别】:日本
【发布日期】:2009-04-20
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonIndustrialMachinery
【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】:P97
【国际标准分类号】:53_100
【页数】:12P;A4
【正文语种】:日语
