基本信息
| 标准名称： | 污染源在线自动监控（监测）数据采集传输仪技术要求 |
| 发布部门： | 环境保护部 |
| 发布日期： | 2009-07-02 |
| 实施日期： | 2009-10-01 |
| 首发日期： | |
| 作废日期： | |
| 起草单位： | 中国环境监督总站、北京市环境保护科学研究院 |
| 出版社： | 中国环境科学出版社 |
| 出版日期： | 2009-10-01 |
适用范围
为贯彻《中华人民共和国环境保护法》，规范污染源在线自动监控（监测）系统建设工作，实施国家环境保护标准《污染源在线自动监控（监测）系统数据传输标准》（HJ/T 212），统一性能指标，确保现场监测数据准确传输，制定本标准。
本标准规定了污染源在线自动监测（监控）数据采集传输仪的技术性能要求和性能检测方法。
本标准适用于数据采集传输仪的选型使用和性能检测；对于污染源在线自动监控（监测）系统中具有数据采集传输功能的现场监测仪表，只规定其用于数据采集传输功能部分的性能指标和校验方法。
前言
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引用标准
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所属分类：
【英文标准名称】:StandardTestMethodforPressureRatingPoly(VinylChloride)(PVC)PlasticPipeFittings,Schedule40and80Socket-Type
【原文标准名称】:表40～80额定压力氯乙烯(PVC)塑料管配件的标准试验方法
【标准号】:ASTMF2261-2006
【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】:F17.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:氯化物;配件;管道配件;塑料管;塑料配件;额定压力;PVC;额定植;座孔;试验;氯乙烯
【英文主题词】:PVCsocketfittings;pressurerating;method
【摘要】:Theprocedureforestablishingthelong-termpressureratingoffittingsstartswithanextrapolationofaregressionlinethatisbasedonfittingfailuredatawithrespecttotime,whenassembliesaretestedinaccordancewithTestMethodD1598.Thepressure-versustimetofailuredataareobtainedusingwaterat73x00B0;Finassembliesthatareimmersedinawaterorairenvironment.Theextrapolationismadeinsuchamannerthatthelong-termhydrostaticpressureratingisdeterminedfortheseconditions.Thepressuredesignbasisisdeterminedbyconsideringthefollowingitemsandevaluatingtheminaccordancewith6.3.4.2.1Long-termhydrostaticpressure-strengthat100000h,4.2.2Long-termhydrostaticpressure-strengthat50yearsThefittingpressureratingmaybecalculatedbymultiplyingthepressuredesignbasis(PDB)bytheappropriatedesignfactor(DF).1.1ThistestmethodcoversaprocedureforestablishingPressureRatingforPVCschedule40and80socket-typefittingsbyevaluatingfittingfailuretestdataderivedbytestingwater-filledassembliesofpipeandfittings.1.2Unlessthedataapproximatesastraightline,whencalculatedusinglog-logcoordinates,itisnotpossibletoassignapressureratingtothatproductorsampleofproduct.Datathatexhibithighscatter,oradownwardcurve,duetolowlongtermdata,willgivelowextrapolatedvaluesthataremoreconservativewhencalculatedusinglog-logco-ordinates.Inaddition,thisdownwardcurvewillshowashigherscatter,andwherethelowerconfidencelevellimitsarenotmetthedatashallbeclassifiedasunsuitable.(SeeNote1)Note1ThistestmethodissimilartothatusedinTestMethodD2837,whichhasbeenusedforabout30yearstoestablishtheHDSofplasticpipematerialsandisthebasisforallpressureratingsassignedtoplasticpipes.1.3Theproductscoveredbythistestmethodareschedule40or80moldedPVCfittingsthatconformtoSpecificationsD2466orD2467.1.4Thepressureratingsdevelopedusingthistestmethodappliesonlytofittingsidenticaltotheonesthatweretested.Somevariablesthatwillaffectthepressureratingare-pipesize,pattern,molddesign,material,andmoldingconditions.1.5Thevaluesininch-poundunitsaretoberegardedasthestandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6ThetestingprocedureusedtoobtainthefittingfailuredatashallbeasdescribedinthosesectionsofTestMethodD1598,thatarereferencedinSectionofthistestmethod.1.7Theproductscoveredbythistestmethodareintendedforuseinthedistributionofpressurizedliquidsat73176;F.Whenappropriate,thedesignengineermustconsidertheeffectsofelevatedtemperatureandchemicalcompatibilityoftheliquidwiththefittingmaterialandapplynecessarydesignfactors.Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicationofregulatorylimitationspriortouse.Note2Pressurized(compressed)airorothercompressedgasescontainlargeamountsofstoredenergywhichpresentserioussafetyhazardsshouldasystemfailforanyreason.
【中国标准分类号】:J15
【国际标准分类号】:23_040_45
【页数】:3P.;A4
【正文语种】: