【英文标准名称】:Thermalinsulatingproductsforbuildingequipmentandindustrialinstallations-Determinationofdimensions,squarenessandlinearityofpreformedpipeinsulation.
【原文标准名称】:建筑设备和工业设施用绝热制品.预制管绝缘层.尺寸、垂直度和线性度测定
【标准号】:NFP75-420-2002
【标准状态】:现行
【国别】:法国
【发布日期】:2002-09-01
【实施或试行日期】:2002-09-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:建筑;试样;定义;定义;试验装置;试验;建筑物服务设施;塑料;特性;测量技术;绝热材料;材料试验;类似骨架;固体骨架;测定;厚度;扇形件;选择;线性度;基本家用设备;试件;使用设施;矩形性;隔热;建筑物;尺寸
【英文主题词】:
【摘要】:
【中国标准分类号】:Q25
【国际标准分类号】:91_100_60
【页数】:14P;A4
【正文语种】:其他
基本信息
标准名称: | 弹簧钢的热处理 |
中标分类: |
机械 >>
加工工艺 >>
热处理 |
ICS分类: |
机械制造 >>
热处理
|
发布日期: | 1992-02-27 |
实施日期: | 1992-11-30 |
首发日期: | |
作废日期: | |
出版日期: | |
页数: | 7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: 机械 加工工艺 热处理 机械制造 热处理
【英文标准名称】:StandardPracticeforCalculationofHazardPotentialFigures-of-MeritforThermallyUnstableMaterials
【原文标准名称】:热不稳定材料的危害能力灵敏值计算的标准实施规程
【标准号】:ASTME1231-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:E27.02
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:adiabaticdecompositiontemperaturerise;adiabatictemperaturerise;criticaldimension;criticaltemperature;differentialscanningcalorimetry;explosionpotential;hazardpotential;instabilityrating;instantaneouspowerdensity;shocksensitivi
【摘要】:Thispracticeprovidesninefigures-of-meritwhichmaybeusedtoestimatetherelativethermalhazardpotentialofthermallyunstablematerials.Sincenumerousassumptionsmustbemadeinordertoobtainthesefigures-of-merit,caremustbeexercisedtoavoidtoorigorousinterpretation(orevenmisapplication)oftheresults.Thispracticemaybeusedforcomparativepurposes,specificationacceptance,andresearch.Itshouldnotbeusedtopredictactualperformance.1.1Thispracticecoversthecalculationofhazardpotentialfigures-of-meritforexothermicreactions,including:(1)Time-to-thermal-runaway,(2)Time-to-maximum-rate,(3)Criticalhalfthickness,(4)Criticaltemperature,(5)Adiabaticdecompositiontemperaturerise,(6)Explosionpotential,(7)Shocksensitivity,(8)Instantaneouspowerdensity,and(9)NFPAinstabilityrating.1.2Thekineticparametersneededinthiscalculationmaybeobtainedfromdifferentialscanningcalorimetry(DSC)curvesbymethodsdescribedinotherdocuments.1.3Thistechniqueisthebestapplicabletosimple,singlereactionswhosebehaviorcanbedescribedbytheArrheniusequationandthegeneralratelaw.Forreactionswhichdonotmeettheseconditions,thistechniquemay,withcaution,serveasanapproximation.1.4Thecalculationsandresultsofthispracticemightbeusedtoestimatetherelativedegreeofhazardforexperimentalandresearchquantitiesofthermallyunstablematerialsforwhichlittleexperienceandfewdataareavailable.Comparablecalculationsandresultsperformedwithdatadevelopedforwellcharacterizedmaterialsinidenticalequipment,environment,andgeometryarekeytotheabilitytoestimaterelativehazard.1.5Thefigures-of-meritcalculatedasdescribedinthispracticeareintendedtobeusedonlyasaguidefortheestimationoftherelativethermalhazardpotentialofasystem(materials,container,andsurroundings).Theyarenotintendedtopredictactualthermokineticperformance.Thecalculatederrorsfortheseparametersareanintimatepartofthispracticeandmustbeprovidedtostressthis.Itisstronglyrecommendedthatthoseusingthedataprovidedbythispracticeseektheconsultationofqualifiedpersonnelforproperinterpretation.1.6ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.7ThereisnoISOstandardequivalenttothispractice.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C65
【国际标准分类号】:13_230
【页数】:7P.;A4
【正文语种】:英语