基本信息
标准名称: | 加气混凝土干燥收缩试验方法 |
英文名称: | Test methods for dry shrinkage of aerated concrete |
中标分类: |
建材 >>
建材产品 >>
建材产品综合 |
ICS分类: |
建筑材料和建筑物 >>
建筑材料 >>
混凝土和混凝土制品
|
替代情况: | 替代GB 11972-1989;被GB/T 11969-2008代替 |
发布部门: | 国家技术监督局 |
发布日期: | 1997-01-01 |
实施日期: | 1998-06-01 |
首发日期: | 1989-12-23 |
作废日期: | 2009-03-01 |
主管部门: | 中国建筑材料工业协会 |
提出单位: | 国家建筑材料工业局 |
归口单位: | 全国水泥制品标准化技术委员会 |
起草单位: | 硅酸盐建筑制品质检中心 |
出版社: | 中国标准出版社 |
出版日期: | 1998-06-01 |
页数: | 4页 |
适用范围
本标准规定了加气混凝土干燥收缩试验用仪器设备、试件、标准试验方法、快速试验方法、结果计算与评定和试验报告。本标准适用于加气混凝土。
前言
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目录
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引用标准
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所属分类: 建材 建材产品 建材产品综合 建筑材料和建筑物 建筑材料 混凝土和混凝土制品
【英文标准名称】:StandardSpecificationforSpecialEngineeredFittings,AppurtenancesorValvesforuseinPoly(VinylChloride)(PVC)orChlorinatedPoly(VinylChloride)(CPVC)Systems
【原文标准名称】:聚氯乙烯(PVC)或氯化聚氯乙烯(CPVC)系统中使用的专用工程配件、附件或阀门的标准规范
【标准号】:ASTMF1970-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:公用事业设备;活接头;阀门;止回阀;CPVC;饮用水设备;弹性体;聚氯乙烯;法兰;配件;材料试验
【英文主题词】:appurtenances;checkvalves;CPVC;elastomericjoints;elastomers;fittings;flanges;PVC;SE;special-engineered;unions;valves
【摘要】:1.1Thisspecificationcoversfittings,appurtenancesandvalveswhicharetobeusedwithpipeandtubingcomplyingwithSpecificationsD1785,D2241,D2846,F441orF442,orotherpipingasspecifiedbythefittingsmanufacturer.Theseproducts,suchasunions,flangesorvalves,arenotincludedinthescopeofexistingASTMspecifications.Thisspecificationincludesminimumrequirementsfortesting,materials,dimensions,workmanship,marking,andin-plantqualitycontrol.1.2Fittingsorappurtenancescoveredbythisspecificationaregenerallyeithermolded,fabricated,orassembledfrommoldedormachinedcomponents.Thematerialsusedincomponentsincluderigidthermoplastics,thermoplasticelastomers,elastomerics,andmetals.Thebodyormainportionofthefitting,appurtenanceorvalveistypicallyPVC,CPVC,PEorPA(nylon).AllproductscoveredbythisstandardareintendedtobeusedinPVCorCPVCplasticpipingsystems,orasatransitionfromthesetometalsystems.1.3Theapplicationoftheseproductstogasserviceisbeyondthescopeofthisspecification.1.4Theproductscoveredbythisspecificationareintendedforusewiththedistributionofpressurizedliquidsonly,whicharechemicallycompatiblewiththepipingmaterials.Duetoinherenthazardsassociatedwithtestingcomponentsandsystemswithcompressedairorothercompressedgasessomemanufacturersdonotallowpneumatictestingoftheirproducts.Consultwithspecificproduct/componentmanufacturersfortheirspecifictestingprocedurespriortopneumatictesting.Note18212;Warning:Pressurized(compressed)airorothercompressedgasescontainlargeamountsofstoredenergywhichpresentserioussafetywhichpresentserioussafetyhazardsshouldasystemfailforanyreason.1.5Fittingswhichrelyonheatfusionweldingforconnectiontothepipingsystemareoutsidethescopeofthisspecification.1.6Checkvalves(includingfootvalves)coveredbythisspecificationshallnotbeconsideredbackflowpreventiondevicesandshallnotbeusedfortheprotectionofapotablewatersupply.Fordefinitionsandrequirementsofbackflowpreventiondevices,consultmodelplumbingcodesandASSE.1.7Duetothecomplexandinstallation-specificconcernssurroundingchemicalresistanceandcorrosion,thisspecificationdoesnotaddressthecompatibilityoftheproductswithallpossibleend-useenvironments.Additionaltestingspecifictotheend-useenvironmentisrecommendedifthesystemisconveyingliquidsotherthanpotablewater.1.8Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSIunitsgiveninparenthesesaregivenforinformationonly.1.9Thefollowingsafetycaveatappliesonlytothetestmethodsandin-plantqualitycontrolportions,sectionofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G33
【国际标准分类号】:83_140_30
【页数】:6P.;A4
【正文语种】: