JIS C5508-1978 小型耳机

时间:2024-05-14 07:55:51 来源: 标准资料网 作者:标准资料网 阅读:9161
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【英文标准名称】:Midgetearphones
【原文标准名称】:小型耳机
【标准号】:JISC5508-1978
【标准状态】:作废
【国别】:日本
【发布日期】:
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:Electronics
【标准类型】:()
【标准水平】:()
【中文主题词】:耳机;无线电接收机;音频设备
【英文主题词】:earphones;radioreceivers;audioequipment
【摘要】:
【中国标准分类号】:M72
【国际标准分类号】:33_160_50
【页数】:6P;A4
【正文语种】:日语


【英文标准名称】:StandardPracticesforPackaging,Marking,andLoadingMethodsforSteelProductsforShipment
【原文标准名称】:装船钢制品的包装、标记和装载方法的标准实施规范
【标准号】:ASTMA700-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:A01.94
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:钢;运输;作标记;海船;货物运输;钢产品;金属线;薄板材;薄板材;包装件;水路运输工程;带钢;工艺
【英文主题词】:loading;marking;packaging;shipment;steelproducts
【摘要】:1.1Thesepracticescoverthepackaging,marking,andloadingofsteelproductsforshipment.Assumingproperhandlingintransit,thepracticesareintendedtodelivertheproductstotheirdestinationingoodcondition.Itisalsointendedthattheserecommendationsbeusedasguidesforattaininguniformity,simplicity,adequacy,andeconomyintheshipmentofsteelproducts.1.2Thesepracticescoversemi-finishedsteelproducts,bars,bar-sizeshapesandsheetpiling,rods,wireandwireproducts,tubularproducts,plates,sheets,andstrips,tinmillproducts,andcastings.Aglossaryofpackaging,marking,andloadingtermsisalsoincluded.1.3Thepracticesarepresentedinthefollowingsequence:1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H40
【国际标准分类号】:55_180_40
【页数】:40P.;A4
【正文语种】:


【英文标准名称】:StandardPracticeforMeasuringTraceElementsinWaterbyGraphiteFurnaceAtomicAbsorptionSpectrophotometry
【原文标准名称】:用石墨炉原子吸收分光光度测定法测量水中痕量元素的标准实施规范
【标准号】:ASTMD3919-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D19.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:水;含量测定;测量;原子吸收分光光度测定法;工艺
【英文主题词】:elements;graphitefurnaceatomicabsorption;water
【摘要】:Elementalconstituentsinpotablewater,receivingwater,andwastewaterneedtobeidentifiedforsupportofeffectivepollutioncontrolprograms.Currently,oneofthemostsensitiveandpracticalmeansformeasuringlowconcentrationsoftraceelementsisbygraphitefurnaceatomicabsorptionspectrophotometry.1.1Thispracticecoversthegeneralconsiderationsforthequantitativedeterminationoftraceelementsinwaterandwastewaterbygraphitefurnaceatomicabsorptionspectrophotometry.Furnaceatomizersareamostusefulmeansofextendingdetectionlimits;however,thepracticeshouldonlybeusedatconcentrationlevelsbelowtheoptimumrangeofdirectflameaspirationatomicabsorptionspectrophotometry.Becauseofdifferencesbetweenvariousmakesandmodelsofsatisfactoryinstruments,nodetailedoperatinginstructionscanbeprovidedforeachinstrument.Instead,theanalystshouldfollowtheinstructionsprovidedbythemanufacturerofaparticularinstrument.1.2Wavelengths,estimateddetectionlimits,andoptimumconcentrationrangesaregivenintheindividualmethods.Rangesmaybeincreasedordecreasedbyvaryingthevolumeofsampleinjectedortheinstrumentalsettingsorbytheuseofasecondarywavelength.Samplescontainingconcentrationshigherthanthosegivenintheoptimumrangemaybedilutedoranalyzedbyothertechniques.1.3Thistechniqueisgenerallynotapplicabletobrinesandseawater.Specialtechniquessuchasseparationofthetraceelementsfromthesalt,carefultemperaturecontrolthroughrampingtechniques,ormatrixmodificationmaybeusefulforthesesamples.1.4Theanalystisencouragedtoconsulttheliteratureasprovidedbytheinstrumentmanufactureraswellasvarioustradejournalsandscientificpublications.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:
【页数】:8P.;A4
【正文语种】: