BS EN 1342-2000 外铺路用天然石材小方石.要求和试验方法
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来源:标准资料网
【英文标准名称】:Settsofnaturalstoneforexternalpaving-Requirementsandtestmethods
【原文标准名称】:外铺路用天然石材小方石.要求和试验方法
【标准号】:BSEN1342-2000
【标准状态】:作废
【国别】:英国
【发布日期】:2000-04-15
【实施或试行日期】:2000-04-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:design;pavement;size;naturalstones;construction;specification(approval);definitions;rocks;constructionmaterials;dimensions;grades(quality);exteriorareas;definition;pavingslabs;stone
【摘要】:
【中国标准分类号】:Q21
【国际标准分类号】:93_080_20
【页数】:64P;A4
【正文语种】:英语
基本信息
标准名称: | 电线电缆用软聚氯乙烯塑料 |
英文名称: | Plasticized polyvinyl chloride (PVC) compounds for wire and cable |
中标分类: |
电工 >>
电工材料和通用零件 >>
电工绝缘材料及其制品 |
ICS分类: |
电气工程 >>
电线和电缆 >>
电缆
|
替代情况: | QB/T 3804-1999(原标准号GB 8815-1988); 被GB/T 8815-2008代替 |
发布部门: | 中华人民共和国国家质量监督检验检疫总局 |
发布日期: | 2002-03-05 |
实施日期: | 2002-09-01 |
首发日期: | 1988-02-13 |
作废日期: | 2009-09-01 |
主管部门: | 中国轻工业联合会 |
提出单位: | 中国轻工业联合会 |
归口单位: | 全国塑料制品标准化技术委员会 |
起草单位: | 上海化工厂有限公司 |
起草人: | 穆肖斌、项健、钟伟勤、夏蔚青、朱克俭 |
出版社: | 中国标准出版社 |
出版日期: | 2002-09-01 |
页数: | 平装16开, 页数:8, 字数:17千字 |
书号: | 155066.1-18506 |
适用范围
本标准规定了电线电缆用软聚氯乙烯塑料的产品分类、技术要求、试验方法、检验规则和包装、标志、运输、贮存。本标准适用于以聚氯乙烯树脂为主要原料,加入增塑剂、稳定剂等助剂,经混合、塑化、成粒而制得的电线电缆用软聚氯乙烯塑料。
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 电工材料和通用零件 电工绝缘材料及其制品 电气工程 电线和电缆 电缆
【英文标准名称】:StandardGuideforPetrographicExaminationofAggregatesforConcrete
【原文标准名称】:混凝土用集料的岩相检验的标准指南
【标准号】:ASTMC295-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:C09.65
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:aggregate;analysis;composition;crushedrock;crushedstone;examination;ledgerock;manufacturesand;naturalsand;petrography;quarry;Aggregate;Compositionanalysis;Crushedrock/stone;Drilledconcretecores;Ledgerock;Manufacturedsand;Micros
【摘要】:Petrographicexaminationsaremadeforthefollowingpurposes:Todeterminethephysicalandchemicalcharacteristicsofthematerialthatmaybeobservedbypetrographicmethodsandthathaveabearingontheperformanceofthematerialinitsintendeduse.Todescribeandclassifytheconstituentsofthesample,Todeterminetherelativeamountsoftheconstituentsofthesamplethatareessentialforproperevaluationofthesamplewhentheconstituentsdiffersignificantlyinpropertiesthathaveabearingontheperformanceofthematerialinitsintendeduse,andTocomparesamplesofaggregatefromnewsourceswithsamplesofaggregatefromoneormoresources,forwhichtestdataorperformancerecordsareavailable.Thisguidemaybeusedbyapetrographeremployeddirectlybythoseforwhomtheexaminationismade.Theemployershouldtellthepetrographer,inasmuchdetailasnecessary,thepurposesandobjectivesoftheexamination,thekindofinformationneeded,andtheextentofexaminationdesired.Pertinentbackgroundinformation,includingresultsofpriortesting,shouldbemadeavailable.Thepetrographer''sadviceandjudgmentshouldbesoughtregardingtheextentoftheexamination.Thisguidemayformthebasisforestablishingarrangementsbetweenapurchaserofconsultingpetrographicserviceandthepetrographer.Insuchacase,thepurchaserandtheconsultantshouldtogetherdeterminethekind,extent,andobjectivesoftheexaminationandanalysestobemade,andshouldrecordtheiragreementinwriting.Theagreementmaystipulatespecificdeterminationstobemade,observationstobereported,fundstobeobligated,oracombinationoftheseorotherconditions.Petrographicexaminationofaggregateconsideredforuseinhydraulic-cementconcreteisoneaspectoftheevaluationofaggregate,butpetrographicexaminationisalsousedformanyotherpurposes.Petrographicexaminationsprovideidentificationoftypesandvarietiesofrockspresentinpotentialaggregates.However,asnotedabove,identificationofeveryrockandmineralpresentinanaggregatesourceisnotrequired.Thepetrographicexaminationshouldestablishwhethertheaggregatecontainschemicallyunstablemineralssuchassolublesulfates,unstablesulfidesthatmayformsulfuricacidorcreatedistressinconcreteexposedtohightemperaturesduringservice,orvolumetricallyunstablematerialssuchassmectites(formerlyknownasthemontmorillonite-saponitegroupofmineralsorswellingclays).Specificationsmaylimitthequartzcontentofaggregatesforuseinconcretethatmaybesubjecttohightemperature(purposefullyoraccidentally)becauseoftheconversiontobeta-quartzat573x00B0;C(1063x00B0;F),withaccompanyingvolumeincrease.Petrographicexaminationshouldidentifytheportionofeachcoarseaggregatethatiscomposedofweatheredorotherwisealteredparticlesandtheextentofthatweatheringoralteration,whetheritissevere,moderate,orslight,andshoulddeterminetheproportionofeachrocktypeineachcondition.Iftheconcreteinwhichtheaggregatemaybeusedwillbeexposedtofreezingandthawinginacriticallysaturatedcondition,finelyporousandhighlyweatheredorotherwisealteredrocksshouldbeidentifiedbecausetheywillbeespeciallysusceptibletodamagebyfreezingandthawingandwillcausetheaggregateportionoftheconcretetofailinfreezingandthawing.Thiswillultimatelydestroytheconcretebecausesuchaggregatescannotbeprotectedbyadequatelyair-entrainedmortar.Finelyporousaggregatesneartheconcretesurfacearealsolikelytoformpopouts,whichareblemishesonpavementsandwalls.Petrographicexaminationsmayalsobeusedtodeterminetheproportionsofcubic,spherical,ellipsoidal,pyramid........
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:9P.;A4
【正文语种】:英语