MIL-STD-348B (INITIAL DRAFT)
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MIL-STD-348B (INITIAL DRAFT), DEPARTMENT OF DEFENSE INTERFACE STANDARD: RADIO FREQUENCY CONNECTOR INTERFACES FORMIL-DTL-3643, MIL-DTL-3650, MIL-DTL-3655, MIL-DTL-25516,MIL-PRF-31031, MIL-PRF-39012, MIL-PRF-49142, MIL-PRF-55339, MIL-DTL-83517 (03 SEP 2009)., The purpose of this standard is to standardize on Radio Frequency connectorinterfaces and to ensure the inclusion of essential design requirements. This standard specifies the dimensional requirements for radio frequency connectorinterfaces referenced in MIL-DTL-3643, MIL-DTL-3650, MIL-STD-3655, MIL-DTL-25516, MIL-PRF-39012,MIL-PRF-49142, MIL-PRF-55339 and MIL-DTL-83517. The purpose of this standard is to standardizeradio frequency connector interfaces and to ensure the inclusion of essential design requirements.
【英文标准名称】:Amethodforcalculatingreductionfactorsforgroupsofcablesinfreeair,protectedfromsolarradiation
【原文标准名称】:在静止大气中,具有太阳辐射的防护的电缆群的衰减系数的计算方法
【标准号】:IEC61042-1991
【标准状态】:作废
【国别】:国际
【发布日期】:1991-02
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC20A
【标准类型】:()
【标准水平】:()
【中文主题词】:太阳辐射;数学计算;户外;高压引线;电缆;电气工程;还原比率
【英文主题词】:outdoor;solarradiation;cables;mathematicalcalculations;electricalengineering;hightensionleads;reductionratio
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:1600
【页数】:20P;A4
【正文语种】:英语
【英文标准名称】:StandardGuideforSafetyandHealthRequirementsRelatingtoOccupationalExposuretoWater-InsolubleChromates
【原文标准名称】:有关暴露在不溶于水的铬酸盐中的职业安全和健康要求的规程
【标准号】:ASTME848-1994(2006)
【标准状态】:现行
【国别】:
【发布日期】:1994
【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】:D01.21
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:铬酸盐;水不溶性的;职业安全;保健;安全要求
【英文主题词】:chromium;chromiumbasedpigments;chromiumcompounds;exposure;health;hexavalentchromium;insolublechromium;safety
【摘要】:Thisguideincludeschromatesthatarenotreadilysolubleinwaterandthathavewatersolubilities(ChromateION)withintherangeofthemoresolublecalciumchromateandthemuchlesssolubleleadchromate.Themajoroccupationsinvolvingpotentialexposuretoinsolublechromatesareinroastingofchromiteore,themanufactureofchromatepigments,themanufactureofcoatingscontainingchromatepigments,andspraypaintingwiththesecoatings.Thereisinsufficientevidencetoconcludethattrivalentchromiumcompoundsarecarcinogenic.1.1Thisguidecoverscontrolproceduresforthesafeproduction,storage,transportation,andhandlingofonlythehexavalentchromiumcompoundsfoundinandtheirvarioushydrates,andmixturesofcoprecipitatesofthesameregardlessofcrystallineform.1.2Thisguideisnotintendedtocover(a)such"soluble"chromatesaschromatesofsodium,potassium,magnesium,orammonium;(b)solublebichromates;(c)chromicacid;(d)volatilechromylcompounds;(e)anytrivalentchromiumcompound;or(f)elementalchromium.Omissionofsaidcompoundsorclassesofcompoundsshouldnotbeconstruedtomeanthattheymaybehandledwithoutdueregardtotheirparticularphysical,chemical,andtoxicologicalhazards(,,).1.3Thechromateion,CrO42,dependingupontheacidity,complexestoformdi-,tri-,andhigherpolychromates;hence,thechromateslistedinmaycontainmixturesofpolychromates,dependingonthemethodofisolationandenduse.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityofwhoeverusesthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(FormorespecificprecautionaryinformationseeSection5.)
【中国标准分类号】:C75
【国际标准分类号】:13_100
【页数】:12P.;A4
【正文语种】:
