SYJ 4006-1990 长输管道阴极保护工程施工及验收规范
时间:2024-05-21 21:23:58 来源: 标准资料网 作者：标准资料网 阅读：8945
基本信息
| 标准名称： | 长输管道阴极保护工程施工及验收规范 |
| 中标分类： |
工程建设 >>
原材料工业及通信、广播工程 >>
石油工程 |
| ICS分类： |
|
| 替代情况： | SYJ 4006-1984 |
| 发布日期： | 1991-07-19 |
| 实施日期： | 1991-12-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2010-08-20 |
| 出版日期： | 1900-01-01 |
| 页数： | 20页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 工程建设 原材料工业及通信 广播工程 石油工程
【英文标准名称】:Highvoltagedirectcurrent(HVDC)substationaudiblenoise
【原文标准名称】:高压直流电站(HVDC)声频噪声
【标准号】:IEC22F/243/DTS-2011
【标准状态】:作废
【国别】:国际
【发布日期】:2011-03
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC22F
【标准类型】:()
【标准水平】:()
【中文主题词】:可听度;变流器;定义(术语);直流电流;直流电传输;电能分配;电力系统;电力传输;电气工程;电子工程;能源运输;高电压;高电压技术;噪声;噪声辐射;噪声等级;电力电子学;半导体器件;声级;噪声值;声功率;规范(验收);符号;试验;变电站(电气)
【英文主题词】:Audibility;Converters;Definitions;Directcurrent;Direct-currentpowertransmission;Electricenergydistribution;Electricpowersystems;Electricpowertransmission;Electricalengineering;Electronicengineering;Energytransmission;Highvoltage;High-voltagetechniques;Noise;Noiseemissions;Noiselevels;Powerelectronics;Semiconductordevices;Soundlevels;Soundpower;Specification(approval);Symbols;Testing;Transformerstations(electrical)
【摘要】:
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20;29_240_10
【页数】:
【正文语种】:英语
【英文标准名称】:StandardGuideforAbrasionResistanceofTextileFabrics(UniformAbrasion)
【原文标准名称】:针织织物耐磨损性的(均匀磨损法)的标准指南
【标准号】:ASTMD4158-2008
【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】:D13.60
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:abrasion;abrasionresistance;carpets;floorcoverings;nonwoven;pile;rugs;textile;textilefabrics;uniform;yarn;Abrasionresistance--textilefabrics/fibers;Nonwoventextilefabrics;Uniformabrasionmethod;Abrasionresistance--textile
【摘要】:Theresistancetoabrasionoftextilematerialsisaffectedbymanyfactorsinacomplexmanner.Theresultsobtainedfromtheuseofthisinstrumentassistinevaluatingthesefactorsrelativetothewearserviceabilityofthefinaltextileproductinspecificenduses.Theresistancetoabrasionisaffectedbymanyfactorsthatincludetheinherentmechanicalpropertiesofthefibers;thedimensionsofthefibers;thestructureoftheyarns;theconstructionofthefabrics;thetype,kind,amountoftreatmentaddedtothefibers,yarnsorfabric;thenatureoftheabradant;thetensiononthespecimen;thepressurebetweenthespecimenandtheabradant;andthedimensionalchangesinthespecimen.Experiencehasshowninmanyinstances,thatrelativeresultsobtainedwiththisinstrumentwhenusedonaseriesoffabrics,agreedwiththoseobtainedbaseduponperformanceinenduse.However,cautionisadvisedbecauseanomalousresultsmayoccurduetouncontrolledfactorsinmanufacturingorotherprocesses.Specificinstanceshavebeendescribed.,,,Inanyevent,anomalousresultsshouldbestudiedtofurtherunderstandthecomplexbehaviorthatmayoccurasaresultofabrasionthatmayinturnassistinthedevelopmentofmoredurablefabrics.Testingsomespecimensunderx201C;wetx201D;conditionscanaddanotherdimensiontotheevaluationofsometextiles.Suchtestingunderx201C;wetx201D;conditionscanhelpascertaintheeffectofchangesinafabric''sresistancetoabrasionwhenitbecomeswet.Thistestcanalsoincreasetheuniformityoftheabradingactionbywashingawayabrasiondebrisandpreventingthebuildupofbrokenfibersthatcaninterferewiththeproperprogressionofthetests.Thistestisusedasaguideinevaluatingtextilesinqualitycontrolandinresearch.Iftherearedifferencesofpracticalsignificancebetweenreportedtestresultsfortwolaboratories(ormore),comparativetestsshouldbeperformedtodetermineifthereisastatisticalbiasbetweenthem,usingcompetentstatisticalassistance.Asaminimum,thetestsamplesshouldbeusedthatareashomogenousaspossible,thataredrawnfromthematerialfromwhichthedisparatetestresultswereobtained,andthatarerandomlyassignedinequalnumberstoeachlaboratoryfortesting.Otherfabricswithestablishedtestvaluesmaybeusedforthispurpose.Thetestresultsfromthetwolaboratoriesshouldbecomparedusingastatisticaltestforunpaireddata,ataprobabilitylevelchosenpriortothetestingseries.Ifabiasisfound,eitheracausemustbefoundandcorrected,orfuturetestresultsmustbeadjustedinconsiderationoftheknownbias.Thistestisuniqueandissignificantlydifferentfromanyotherexistingabradingtest.Thisguidemayalsobeusedasatechniqueforpretreatingmaterialforsubsequenttesting.Forexample,apredeterminednumberofabrasioncyclesatspecifiedtestconditionsmaybeperformedonaseriesofspecimens,whicharethensubjectedtoastrengthorbarrierperformancetest.Theresistanceoftextilematerialstoabrasionasmeasuredbythisguidedoesnotincludeallthefactorswhichaccountforwearperformanceordurabilityinactualuse.Whilethex201C;abrasionresistancex201D;statedintermsofthenumberofcyclesandx201C;durabilityx201D;(definedastheabilitytowithstanddeteriorationorwearingoutinuse,includingtheeffectsofabrasion)arefrequentlyrelated.Therelationshipvarieswithdifferentenduses,anddifferentfactorsmaybenecessaryi......