JB/T 57191-1994 家用煤气表产品质量分等
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来源:标准资料网
基本信息
标准名称: | 家用煤气表产品质量分等 |
替代情况: | JB/YQ082-88 |
发布部门: | 上海工业自动化仪表所 |
发布日期: | 1900-01-01 |
实施日期: | 1900-01-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
出版日期: | 1900-01-01 |
适用范围
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前言
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目录
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引用标准
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所属分类: 电工 发电用动力设备 水轮机及其辅助设备
【英文标准名称】:StandardSpecificationforPlasticInsertFittingsForSDR9Cross-linkedPolyethylene(PEX)andPolyethyleneofRaisedTemperature(PE-RT)Tubing
【原文标准名称】:SDR9交联聚乙烯(PEX)和升温聚乙烯(PE-RT)管道用塑料内插配件用的标准规范
【标准号】:ASTMF2735-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:F17.10
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:cold-andhot-waterdistribution;coppercrimprings;cross-linkedpolyethylene;plasticinsertfittings;PEX;PE-RT;Crosslinkedpolyethylene(PEX)pipe/tube;Plasticpipe/tubing/fittings--specifications;Tubing--plastic
【摘要】:1.1Thisspecificationestablishesrequirementsforsulfoneplasticinsertfittingsandcoppercrimpringsforthreesizes(x00BD;,x00BE;,and1)ofcross-linkedpolyethylene(PEX)andpolyethyleneofraisedtemperature(PE-RT)plastictubing.Thesefittingsareintendedforusein100psi(690kPa)cold-andhot-waterdistributionsystemsoperatingattemperaturesuptoandincluding180x00B0;F(82x00B0;C).Includedaretherequirementsformaterial,moldedpartproperties,performance,workmanship,dimensions,andmarkingstobeusedonthefittingsandrings.1.2Units8212;Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thefollowingisanindexoftheappendixinthisspecification.GO/NO-GOCrimpGauges
AppendixX1
【英文标准名称】:StandardTestMethodforHydrogenSulfideintheAtmospherebyRateofChangeofReflectance
【原文标准名称】:通过反射变化的比率对空气中硫化氢的标准试验方法
【标准号】:ASTMD4323-1984(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1984
【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】:D22.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:atmospheres;hydrogensulfide;tapesampler;Airpollution/toxicityassessment;Atmosphericanalysis;Fieldtesting--atmosphericanalysis;Healthhazards;Hydrogensulfide--atmosphericanalysis;Pollutants;Rateofchangeofreflection;Reflectanceand
【摘要】:Hydrogensulfideisanodoroussubstancewhichisoffensiveevenatlowconcentrationsintheatmosphereandtoxicathigherlevels.Itmaybeaproductofbiologicalprocessesintheabsenceofoxygen,asmayoccurinmunicipalgarbagelandfills.Itisemittedfromgeothermalsources,occursinoilandgas,andmaybeemittedfromindustrialprocesses.Measurementisrequiredforairpollutionstudies,forpollutioncontrol,andforplumecharacterization.Equipmentdescribedissuitableforfixedsiteorformobilemonitoring.1.1Thistestmethodcoverstheautomaticcontinuousdeterminationofhydrogensulfide(H2S)intheatmosphereoringaseoussamplesintherangefromonepartperbillionbyvolume(1ppb/v)to3000ppb/v.Informationobtainedmaybeusedforair-pollutionstudiesandtomonitorforemissionsources.1.2Therangemaybeextendedbyappropriatedilutiontechniquesorbyequipmentmodification.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(See6.2,6.3,and6.4forspecificsafetyprecautionarystatements.)
【中国标准分类号】:Z15
【国际标准分类号】:13_040_20
【页数】:5P.;A4
【正文语种】:英语