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BS EN 1555-4-2002 法兰及其连接件.PN标示法兰用垫圈的尺寸.有槽法兰用聚合O形密封圈

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【英文标准名称】:Plasticspipingsystemsforthesupplyofgaseousfuels-Polyethylene(PE)-Part4:Valves
【原文标准名称】:法兰及其连接件.PN标示法兰用垫圈的尺寸.有槽法兰用聚合O形密封圈
【标准号】:BSEN1555-4-2002
【标准状态】:作废
【国别】:英国
【发布日期】:2004-01-07
【实施或试行日期】:2002-01-01
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:气体供应线路;特性;试验;管系统;材料;附件;聚乙烯;聚乙烯管道;聚乙烯;定义;规范(验收);塑料管;阀门;管道;配件;管道阀门和配件;燃气供应;压缩气体管道;压缩气体设备;燃气管道
【英文主题词】:Accessories;Compressedgasequipment;Definition;Definitions;Fittings;Gaspipelines;Gassupply;Gassupplyline;Materials;PE;PEpipes;Pipelines;Pipingsystem;Plasticpipes;Polyethylene;Pressuregaspipelines;Properties;Specification(approval);Testing;Valves;Valvesandfittingsforpipelines
【摘要】:ThispartofEN1555specifiesthecharacteristicsofvalvesmadefrompolyethylene(PE)forpipingsystemsinthefieldofthesupplyofgaseousfuels.NOTEValvesmadefromothermaterialthanpolyethylenedesignedforthesupplyofgaseousfuelsconformingtotherelevantstandardsarepermittedtobeusedinPEpipingsystemaccordingtoEN1555providedtheyhaverelevantPEconnectionforbuttfusionorelectrofusionends(seeEN1555-3).Italsospecifiesthetestparametersforthetestmethodsreferredtointhisstandard.InconjunctionwiththeotherpartsofEN1555,itisapplicabletoPEvalves,theirjointsandtojointswithcomponentsofPEandothermaterialsintendedtobeusedunderthefollowingconditions:a)amaximumoperatingpressure,MOP,uptoandincluding10bar;b)anoperatingtemperatureof20℃asreferencetemperature;NOTE1Forotheroperatingtemperatures,deratingcoefficientsshouldbeused,seeEN1555-5.c)anoperatingtemperaturebetween-20℃and+40℃.EN1555coversarangeofmaximumoperatingpressuresandgivesrequirementsconcerningcoloursandadditives.NOTE2Itistheresponsibilityofthepurchaserorspecifiertomaketheappropriateselectionsfromtheseaspects,takingintoaccounttheirparticularrequirementsandanyrelevantnationalregulationsandinstallationpracticesorcodes.Itisapplicabletobi-directionalvalveswithspigotendorelectrofusionsocketintendedtobefusedwithPEpipesconformingtoEN1555-2withoutanyfittingsorwithPEfittingsconformingtoEN1555-3.ThispartofEN1555coversvalveswithanominalsizeDN/OD≤225.note:1)1bar=0.1MPa
【中国标准分类号】:P94
【国际标准分类号】:23_060_01;91_140_40
【页数】:21P.;A4
【正文语种】:英语


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【英文标准名称】:StandardSpecificationforAqueousDispersionsofPolytetrafluoroethylene
【原文标准名称】:聚四氟乙烯的水分散体的标准规范
【标准号】:ASTMD4441-2004(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【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】:D20.15
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:fluoropolymers;polytetrafluoroethylene;polytetrafluoroethylenedispersions;PTFE;Aqueousdispersions;PTFE(polytetrafluoroethylene)--specifications
【摘要】:1.1Thisspecificationcoversaqueousdispersionsofpolytetrafluoroethylene(PTFE)resins.Theseresinsarehomopolymersoftetrafluoroethylene,orinsomecasesmodifiedhomopolymerscontainingnotmorethan1%byweightofotherfluoromonomers.1.1.1Thedispersionisusuallystabilizedbyoneormoresurfactants.Othernon-PTFEmaterialsmaybepresentintotalat5%orlessbyweightforspecialpurposes.1.1.2Thisspecificationisforvirginmaterialonlyanddoesnotaddressrecycledmaterialasitisnotappropriatefordispersions.1.2Thisspecificationisusedtodetermineifashipment,lot,orcontainerofPTFEdispersionissuitableforitsintendeduse.Itcoversonlyaqueousdispersionsofpolytetrafluoroethylene.ItdoesnotcoverPTFEcopolymersorfilleddispersions.ThisspecificationincludestestmethodsforbothaqueousdispersionandthePTFEinthedispersion.Note18212;UsesforthePTFEdispersioncoveredbythisspecificationinclude,butarenotlimitedto,castingoftheirfilms,impregnationofmechanicalpackingsandothermaterials,surfacecoatingsonvarioussubstrates,combinedimpregnationandcoatingoffibrousmaterials,andco-coagulationwithothermaterialsforsubsequentprocessingintofilms,sheets,rods,andtubes.Note28212;InformationinthisspecificationistechnicallyequivalenttorelatedinformationinISO12086-1andISO12086-2.1.3ThevaluesstatedinSIunitsasdetailedinaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thefollowingprecautionarycaveatpertainsonlytothetestmethodportionsofthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionaryinformationisgiveninNotes5and6.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:6P.;A4
【正文语种】:英语