BS ISO 1163-1-1996 塑料.未增塑聚氯乙烯模制和挤制材料.第1部分:标记系统和基础规范

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【英文标准名称】:Plastics.Unplasticizedpoly(vinylchloride)(PVC-U)mouldingandextrusionmaterials.Designationsystemandbasisforspecifications
【原文标准名称】:塑料.未增塑聚氯乙烯模制和挤制材料.第1部分:标记系统和基础规范
【标准号】:BSISO1163-1-1996
【标准状态】:现行
【国别】:英国
【发布日期】:1996-05-15
【实施或试行日期】:1996-05-15
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:代码;塑料;弹性模量;高聚物;名称与符号;挤压;分类系统;聚氯乙烯;未增塑聚氯乙烯;冲击强度;软化点;热塑性聚合物;模塑材料
【英文主题词】:extruding;plastics;unplasticizedpolyvinylchloride;codes;designations;classificationsystems;modulusofelasticity;softeningpoint;polymers;thermoplasticpolymers;polyvinylchloride;mouldedmaterials;impactstrength
【摘要】:Givesasystemofdesignationforunplasticizedpolyvinylchloride(PVC-U)mouldingandextrusionmaterialswhichmaybeusedasthebasisforspecifications.Applicabletoallunplasticizedpolyvinylchloridecompositionsthatcontainatleast50%m/mofvinylchloride.Doesnotapplytocellularplastics.Replacesthesecondedition.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:12P;A4
【正文语种】:英语


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基本信息
标准名称:水质 苯系物的测定 气相色谱法
英文名称:Water quality-Determination of benzene and its analogies gas chromatographic method
中标分类: 环境保护 >> 环境保护采样、分析测试方法 >> 水环境有毒物质分析方法
ICS分类:
发布部门:国家环境保护局
发布日期:1989-12-25
实施日期:1990-07-01
首发日期:1989-11-03
作废日期:1900-01-01
主管部门:国家环境保护总局
提出单位:国家环境保护局标准处
归口单位: 国家环境保护总局
起草单位:化工部环保所
起草人:柴树琴、阮红
出版社:中国标准出版社
出版日期:1900-01-01
页数:11页
适用范围

本标准适用于工业废水及地表水中苯、甲苯、乙苯、睁二二甲苯、间二甲苯、邻二甲苯、异丙苯、苯乙烯
了8种苯系物的测定。

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所属分类: 环境保护 环境保护采样 分析测试方法 水环境有毒物质分析方法
【英文标准名称】:StandardPracticesforElectricalMethodsforLocatingLeaksinGeomembranesCoveredwithWaterorEarthMaterials
【原文标准名称】:水或土料覆盖的土工薄膜上漏洞定位的电方法的标准实施规程
【标准号】:ASTMD7007-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:D35.10
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:constructionqualityassurance;electricalleaklocationmethod;geomembrane;leakdetection;leaklocation
【摘要】:Geomembranesareusedasimpermeablebarrierstopreventliquidsfromleakingfromlandfills,ponds,andothercontainments.Theliquidsmaycontaincontaminantsthatifreleasedcancausedamagetotheenvironment.Leakingliquidscanerodethesubgrade,causingfurtherdamage.Leakagecanresultinproductlossorotherwisepreventtheinstallationfromperformingitsintendedcontainmentpurpose.Forthesereasons,itisdesirablethatthegeomembranehaveaslittleleakageaspractical.Geomembraneleakscanbecausedbypoorqualityofthesubgrade,poorqualityofthematerialplacedonthegeomembrane,accidents,poorworkmanship,andcarelessness.Themostsignificantcausesofleaksingeomembranesthatarecoveredwithonlywaterarerelatedtoconstructionactivitiesincludingpumpsandequipmentplacedonthegeomembrane,accidentalpunctures,andpuncturescausedbytrafficoverrocksordebrisonthegeomembraneorinthesubgrade.Themostsignificantcauseofleaksingeomembranescoveredwithearthmaterialsisconstructiondamagecausedbymachinerythatoccurswhileplacingtheearthmaterialonthegeomembrane.Suchdamagealsocanbreachadditionallayersoftheliningsystemsuchasgeosyntheticclayliners.Electricalleaklocationmethodsareaneffectivefinalqualityassurancemeasuretolocatepreviouslyundetectedormissedleaks.1.1Thisstandardpracticedescribesstandardproceduresforusingelectricalmethodstolocateleaksingeomembranescoveredwithwaterorearthmaterialscontainingmoisture.1.2Thisstandardpracticeisintendedtoensurethatleaklocationsurveysareperformedwithdemonstratedleakdetectioncapability.Toallowfurtherinnovations,andbecausevariousleaklocationpractitionersuseawidevarietyofproceduresandequipmenttoperformthesesurveys,performance-basedoperationsareusedthatspecifytheminimumleakdetectionperformancefortheequipmentandprocedures.1.3Thisstandardpracticerequiresthattheleaklocationequipment,procedures,andsurveyparametersusedaredemonstratedtoresultinanestablishedminimumleakdetectionsensitivity.Thesurveyshallthenbeconductedusingthedemonstratedequipment,procedures,andsurveyparameters.1.4Separateproceduresaregivenforleaklocationsurveysforgeomembranescoveredwithwaterandforgeomembranescoveredwithearthmaterials.Separateproceduresaregivenforleakdetectionsensitivitytestsusingactualandartificialleaks.1.5Leaklocationsurveyscanbeusedongeomembranesinstalledinbasins,ponds,tanks,oreandwastepads,landfillcells,landfillcaps,andothercontainmentfacilities.Theproceduresareapplicableforgeomembranesmadeofmaterialssuchaspolyethylene,polypropylene,polyvinylchloride,chlorosulfonatedpolyethylene,bituminousmaterial,andotherelectrically-insulatingmaterials.1.6Warning-Theelectricalmethodsusedforgeomembraneleaklocationcouldusehighvoltages,resultinginthepotentialforelectricalshockorelectrocution.Thishazardmightbeincreasedbecauseoperationsmightbeconductedinornearwater.Inparticular,ahighvoltagecouldexistbetweenthewaterorearthmaterialandearthground,oranygroundedconductor.TheseproceduresarepotentiallyVERYDANGEROUS,andcanresultinpersonalinjuryordeath.Theelectricalmethodsusedforgeomembraneleaklocationshouldbeattemptedonlybyqualifiedandexperiencedpersonnel.Appropriatesafetymeasuresmustbetakentoprotecttheleaklocationoperatorsaswellasotherpeopleatthesite.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheap......
【中国标准分类号】:W59
【国际标准分类号】:59_080_70
【页数】:11P.;A4
【正文语种】: