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MIL-C-83400A (NOTICE 1)

作者:标准资料网 时间:2024-05-22 03:15:25  浏览:8728   来源:标准资料网
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MIL-C-83400A (NOTICE 1), MILITARY SPECIFICATION: CORE MATERIAL FOR METAL SANDWICH PANELS FOR SHELTER CONSTRUCTION (POLYURETHANE FOAM) (03 JUN 1988) [NO S/S DOCUMENT]., Military specification MIL-C-83400A, dated 19 August 1980, is hereby canceled.
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【英文标准名称】:StandardTestMethodforDeterminationofPack-SetIndexofPortlandCement
【原文标准名称】:测定硅酸盐水泥填充固着指数的标准试验方法
【标准号】:ASTMC1565-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:C01.20
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:packset;pack-setindex;peakvoltage;portlandcement;roto-tester;Cement;Consolidation;Fieldperformanceofcementflowability;Maximumvoltage;Mechanicalforce;Pack-setindex;Performance--buildingmaterials/applications;Portlandcement;Roto
【摘要】:Thismethodisintendedtohelpmanufacturersdeterminetherelativepack-settendencyoftheircement(s).Thetestestablishesapack-setindexwhich,whenproperlycorrelatedwithfieldperformance,isusefulinpredictingorpreventingfieldunloadingdifficulties.Thetestisanaidtoroutinecontrolduringcementproductionandisnotsuitableforspecificationpurposes.Ingeneral,fieldperformanceofcementflowabilityissatisfactorywhenthepack-setindexasdeterminedonfreshlygroundcementaverages0to15andisunsatisfactorywhentheindexexceeds25.Anypredictionoffieldperformanceofcementflowabilitymeasuring16to25istenable.Thesearegeneralrangesandthefieldperformanceofindividualcementsmaynotnecessarilyfallwithintheseranges.Additionalconditions,afterthecementhasleftthecontrolofthemanufacturingfacility,canaffecttheapparentpacksetindexaswell.Anyattempttoapplythecriticalrangeofpack-setindexnumbersbasedonfreshlygroundcementtojobcementwithoutspecialtreatmentofthesamplewouldbeproblematic.Thetestisax201C;GO-NOGOx201D;typeoftestandshouldnotbeusedforspecificationpurposes.Thepack-setindexoffieldcementcanbeevaluatedintermsofthepack-setindexrangesofthatcementasdeterminedwhenfreshly-ground.Thiscomparisoncanaidthemanufacturerinproducingcementthatoffersthebestfieldperformanceforpack-setproperties.Silostorageofcementmayresultinagreateramountofconsolidationthanthismethodisdesignedtoinduce,andtheresultingforcesrequiredtoovercomethatconsolidationarenotmeasuredbythistestmethod.Packsetisnottobeconfusedwithx201C;warehousesetx201D;whichresultsfromsurfacehydrationofthecementfromadsorbedmoisture.1.1Thistestmethodcoversthedeterminationofthepack-setindex,whichprovidesanindicationofthemechanicalforceneededtoovercometheconsolidationofportlandcement.1.2Thepack-setindexnumberprovidesanumericalvalueusefulformanufacturerswhodesiretomeasureandcontroltheeffectthatvibration-inducedconsolidationhasuponthemanufacturedcement.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.ValuesstatedinSIunitsshallbeobtainedbymeasurementinSIunitsorbyappropriateconversion,usingtherulesofConversionandroundinggiveninStandardIEEE/ASTMSI10,ofmeasurementsmadeinotherunits.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(WARNINGx2014;Freshhydraulic-cementitiousmixturesarecausticandmaycausechemicalburnstoskinandtissueuponprolongedexposure.)
【中国标准分类号】:Q11
【国际标准分类号】:91_100_10
【页数】:4P.;A4
【正文语种】:英语


【英文标准名称】:Low-voltageswitchgearandcontrolgearassemblies-Part1:Generalrules
【原文标准名称】:低压开关设备和控制设备组件.第1部分:一般规则
【标准号】:IEC61439-1-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-08
【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/SC17D
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Accessories;Alternatingvoltages;Auxiliarycircuits;Characteristics;Circuits;Combination;Combinationapparatus;Compositedevices;Constructionrequirements;Definitions;Electricpowergeneration;Electricalengineering;Electricalsafety;Electromagneticcompatibility;EMC;Enclosures;Environmentalcondition;Instruments;Lowvoltage;Low-voltageequipment;Low-voltageswitchgear;Low-voltagetechnology;Maincircuit;Marking;Operatingconditions;Powertransmission;Protectionagainstelectricshocks;Qualificationtests;Quality;Ratings;Routinechecktests;Stationary;Switchgear;Switchgearassemblies;Switchgears;Switchingsystems;Testing;Transportable;Verification
【摘要】:
【中国标准分类号】:K31
【国际标准分类号】:29_130_20
【页数】:284P;A4
【正文语种】:英语



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