YD/T 535-1992 聚氯乙烯绝缘聚氯乙烯护套低频通信电缆电线实心导体聚氯乙烯绝缘局用配线
作者:标准资料网 时间:2024-04-29 22:23:57 浏览:8193
来源:标准资料网
基本信息
标准名称: | 聚氯乙烯绝缘聚氯乙烯护套低频通信电缆电线实心导体聚氯乙烯绝缘局用配线 |
中标分类: |
通信、广播 >>
通信设备 >>
通信线路设备 |
发布部门: | 中华人民共和国邮电部 |
发布日期: | 1992-04-25 |
实施日期: | 1992-12-01 |
首发日期: | 1900-01-01 |
作废日期: | 2009-12-01 |
提出单位: | 中华人民共和国邮电部 |
归口单位: | 邮电部电信传输研究所 |
起草单位: | 邮电部第五研究所 |
起草人: | 孙强熙 |
出版社: | 人民邮电出版社 |
出版日期: | 1992-12-01 |
页数: | 15页 |
适用范围
本标准适用于实心导体聚氯乙烯绝缘配线,此种配线主要用于建筑物内和配线柜(箱)里,连接下列设备:
— 将设备架端子或通信装置端子连接到另一设备架或通信装置上,或者连接到配线架上;
— 将用户线连接到电话、电报局的交换设备上;
— 临时安装,用于连接通信设备。
前言
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目录
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引用标准
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所属分类: 通信 广播 通信设备 通信线路设备
【英文标准名称】:StandardPracticeforThickWall,Ring-Lined,SplitBarrel,DriveSamplingofSoils
【原文标准名称】:土壤的厚壁环衬分隔筒取样的标准实施规程
【标准号】:ASTMD3550-2001(2007)
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:D18.02
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:抽样方法;施工材料;土壤
【英文主题词】:penetrationresistance;ringlined;soilsampling;splitbarrel
【摘要】:Thispracticeisusedforgeneralsoilinvestigationswheresamplesarerequiredforidentificationandtesting.DisturbedsamplescanbeclassifiedinaccordancewithPracticeD2487andcanbetestedformoisturecontent,particlesize,andAtterberglimits.Thesamplercanbeequippedwithstackedringliners,whichcanbeuseddirectlyforotherlaboratorytests.Thesamplercanbedrivenwithahammerandthepenetrationresistancecanberecorded.Numerouscombinationsofhammersizeanddropheighthavebeenusedinpractice.Hammersizeanddropheightshouldbereported.Usersofthispracticehavederivedlocalcorrelationsofpenetrationresistanceandengineeringpropertiesbasedonlocalconditionsandaparticularhammersystemandsampler,however,thepenetrationresistancemaydifferfromTestMethodD1586.Theusershouldevaluatesamplequality.Theprocessofdrivingthesamplemaydisturbthesoilandchangetheengineeringproperties.Insoftsoils,useofthethinwalltubesampler(PracticeD1587)willlikelyresultinlessdisturbance.Inhardersoils,soilcoringtechniquesmayresultinlessdisturbance;seePracticeD6151,GuideD6169.Thisstandardaddressessamplingindrillholeswithdrillingequipment.Thesamplercanbehanddrivenordrivenintestpitswithoutdrillingequipment.Ifthesespecialdrivingmethodsareusedthesamplingprocessshouldbereported.1.1Thispracticecoversprocedureforthickwall,splitbarreldrivesamplingofsoiltoobtainrepresentativesamplesofsoilforclassificationandlaboratorytesting.Thesamplerisconsideredtobeathickwallsamplerwithsharpenedcuttingshoeandballcheckvent.Themiddlebarrelsectionisoftenofsplitbarreldesign,butasolidbarrelcanbeusedandbothmaycontainringliners.Thesamplerisoftendriven,butcanalsobepushedinsofterdeposits.Penetrationresistancedatamayberecorded.ThisstandardusesproceduressimilartoTestMethodD1586onPenetrationResistanceandSplitBarrelSamplingofSoils.However,inthispractice,differinghammerweights,dropheights,anddifferentsizesamplersareused,sothedatamustnotbereportedasconformingtoTestMethodD1586andcannotbeusedtodetermineNormalizedpenetrationresistancedataforsandsinaccordancewithPracticeD6066.1.2Thispracticeinvolvesuseofrotarydrillingequipment(GuideD5783,PracticeD6151).Otherdrillingandsamplingprocedures(GuideD6286,GuideD6169)areavailableandmaybemoreappropriate.Considerationsforhanddrivingorshallowsamplingwithoutboreholesarenotaddressed.SubsurfaceinvestigationsshouldberecordedinaccordancewithpracticeGuideD5434.SoilsamplesshouldbeclassifiedinaccordancewithPracticeD2488.1.3Thispracticemayormaynotprovideasamplesuitableforadvancedlaboratorytestssuchasshearorconsolidationtesting.Itisuptotheusertodetermineifthesamplequalityissuitableforadvancedlaboratorytestingforengineeringproperties.DrivensamplescanbemoreeasilydisturbedthanpushedsamplessuchasthethinwalltubeinaccordancewithPracticeD1587.However,thinwalltubescannotbeusedinhardersoils.Incaseswhereithasbeenestablishedthatthequalityofthethickwalldrivensampleisadequate,thispracticemayprovideshearandconsolidationspecimensthatcanbeuseddirectlyinthetestapparatuswithoutpriortrimming.Sometypesofsoilsmaygainorlosesignificantshearstrengthorcompressibility,orboth,asaresultofsampling.Incaseslikethese,suitablecomparisontestsshouldbemadetoevaluatetheeffectofsampledisturbanceonshearstrengthandcompressibility.1.4Thisguidedoesnotpurportt......
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:5P.;A4
【正文语种】:
基本信息
标准名称: | F53-40云铁酚醛防锈漆(原ZB/T G51104-87) |
英文名称: | Micaceous Iron Oxide Phenolic Anticorrosive Primer |
中标分类: |
化工 >>
涂料、颜料、染料 >>
涂料 |
替代情况: | 原标准号ZB G51104-87;被HG/T 3369-2003代替 |
发布日期: | 1987-02-04 |
实施日期: | 1987-05-01 |
首发日期: | 1900-01-01 |
作废日期: | 2004-05-01 |
出版日期: | 1900-01-01 |
页数: | 3页 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类: 化工 涂料 颜料 染料 涂料