BS EN ISO 4022-1988 可渗性烧结金属材料.液体渗透性的测定
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【英文标准名称】:Permeablesinteredmetalmaterials-Determinationoffluidpermeability
【原文标准名称】:可渗性烧结金属材料.液体渗透性的测定
【标准号】:BSENISO4022-1988
【标准状态】:现行
【国别】:英国
【发布日期】:1988-10-31
【实施或试行日期】:1988-10-31
【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】:定义;定义(术语);测定;惯量;材料;材料技术;测量;金属;渗透率;渗透性测量;孔隙率;粉末冶金;烧结材料;烧结金属;烧结产品;试验报告;试样;测试;试验;粘度
【英文主题词】:Definition;Definitions;Determination;Inertia;Materials;Materialstechnology;Measurement;Metals;Permeability;Permeabilitymeasurement;Porosity;Powdermetallurgy;Sintermaterials;Sinteredmetals;Sinteredproducts;Testreports;Testspecimens;Testing;Tests;Viscosity
【摘要】:Thissecondeditioncancelsandreplacesthefirstedition(i.e.ISO4022:1977).Thetestiscarriedoutundersuchconditionsthatthefluidpermeabilitycanbeexpressedintermsofviscousandinertiapermeabilitycoefficients(seeannexA).Doesnotapplytoverylonghollowcylindricaltestpiecesofsmalldiameter.AnnexBgivestestfluids.
【中国标准分类号】:H16
【国际标准分类号】:77_160
【页数】:18P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDeterminingtheEffectofFreeze-ThawonHydraulicConductivityofCompactedorIntactSoilSpecimensUsingaFlexibleWallPermeameter
【原文标准名称】:使用一柔壁渗透计对压实的或原状土壤样品液体导电性冻融效果测定的标准试验方法
【标准号】:ASTMD6035-2008
【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】:D18.19
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:coefficientofpermeability;cover;freeze-thaw;hydraulicconductivity;liner;permeameter,Coefficientofpermeability;Compactioncontrol;Cover;Freezingandthawing--soil/rock;Hydraulicconductivity/transmissivity;Liner;Permeability--soil/roc
【摘要】:Thistestmethodidentifiesthechangesinhydraulicconductivityasaresultoffreeze-thawonnaturalsoilsonly.Itistheuser''sresponsibilitywhenusingthistestmethodtodeterminetheappropriatemoisturecontentofthelaboratory-compactedspecimens(thatis,dry,wet,oratoptimummoisturecontent)(Note2).Note28212;Itiscommonpracticetoconstructclaylinersandcoversatoptimumorgreaterthanoptimummoisturecontent.Specimenscompacteddryofoptimummoisturecontenttypicallydonotcontainlargerporesizesasaresultoffreeze-thawbecausetheeffectsoffreeze-thawareminimizedbythelackofwaterinthesample.Therefore,theeffectoffreeze-thawonthehydraulicconductivityisminimal,orthehydraulicconductivitymayincreaseslightly.,Therequestormustprovideinformationregardingtheeffectivestressestobeappliedduringtesting,especiallyfordeterminingthefinalhydraulicconductivity.Usinghigheffectivestresses(thatis,35kPa(5psi)asallowedbyTestMethodD5084)candecreaseanalreadyincreasedhydraulicconductivityresultinginlowerfinalhydraulicconductivityvalues.Thelong-termeffectoffreeze-thawonthehydraulicconductivityofcompactedsoilsisunknown.Theincreasedhydraulicconductivitycausedbyfreeze-thawmaybetemporary.Forexample,theoverburdenpressureimpartedbythewasteplacedonasoillinerinalandfillafterbeingsubjectedtofreeze-thawmayreducethesizeofthecracksandporesthatcausetheincreaseinhydraulicconductivity.Itisnotknownifthepressurewouldovercomethemacroscopicallyincreasedhydraulicconductivitysufficientlytoreturnthesoiltoitsoriginalhydraulicconductivity(priortofreeze-thaw).Forcasessuchaslandfillcovers,wheretheoverburdenpressureislow,theincreaseinhydraulicconductivityduetofreeze-thawwilllikelybepermanent.Thus,therequestormusttaketheapplicationofthetestmethodintoaccountwhenestablishingtheeffectivestress.Thespecimenshallbefrozentox2212;15x00B0;Cunlesstherequestorspecificallydictatesotherwise.Ithasbeendocumentedintheliteraturethattheinitial(thatis,0tox2212;15x00B0;C)freezingconditioncausesthemostsignificanteffectsinhydraulicconductivity.Freezingrateandultimatetemperatureshouldmimicthefieldconditions.Ithasbeenshownthatsuperfreezing(thatis,freezingthespecimenatverycoldtemperaturesandveryshorttimeperiods)produceserroneousresults.Thethawedspecimentemperatureandthawrateshallmimicfieldconditions.Thawingspecimensinanoven(thatis,overheating)willproduceerroneousresults.Literaturerelatingtothissubjectindicatesthattheeffectsoffreeze-thawusuallyoccurbyCycle10,thusitisrecommendedthatatleast10freeze-thawcyclesshallbeperformedtoensurethatthefulleffectsoffreeze-thawaremeasured.Ifthehydraulicconductivityvaluesarestillincreasingafter10freeze-thawcycles,thetestmethodshallbecontinued(thatis,morefreeze-thawcyclesshallbeperformed).Note38212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection/etc.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfact............
【中国标准分类号】:D10
【国际标准分类号】:13_080_20
【页数】:5P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 对硝基氯苯 |
| 英文名称： | p-Chloronitrobenzene |
| 中标分类： |
化工 >>
涂料、颜料、染料 >>
染料中间体 |
| ICS分类： |
涂料和颜料工业 >>
涂料配料 >>
颜料和填充剂
|
| 替代情况： | 替代GB 6817-1986;被GB/T 1653-2006代替 |
| 发布部门： | 中国石油和化学工业协会 |
| 发布日期： | 1992-01-01 |
| 实施日期： | 1993-10-01 |
| 首发日期： | 1986-09-01 |
| 作废日期： | 2007-04-01 |
| 主管部门： | 中国石油和化学工业协会 |
| 归口单位： | 全国染料标准化技术委员会 |
| 起草单位： | 南京化工厂 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 1993-10-01 |
| 页数： | 9 |
适用范围
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前言
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引用标准
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所属分类： 化工 涂料 颜料 染料 染料中间体 涂料和颜料工业 涂料配料 颜料和填充剂
