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JJG 881-1994 标准体温计检定规程

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基本信息
标准名称:标准体温计检定规程
英文名称:Standard Clinical Thermometer
中标分类: 综合 >> 计量 >> 热学计量
发布部门:国家技术监督局
发布日期:1994-09-10
实施日期:1995-02-01
首发日期:1900-01-01
作废日期:1900-01-01
归口单位:中国测试技术研究院
起草单位:中国测试技术研究院
起草人:魏寿芳
出版社:中国计量出版社
出版日期:2004-04-22
页数:11页
书号:155026-788
适用范围

本规程适用于新制造和使用中的测温在35~45℃范围内、分度值为0.05℃,具有零位刻度的标准体温度的检定。

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所属分类: 综合 计量 热学计量
【英文标准名称】:Non-destructivetesting-Imagequalityofradiographs-Part5:Imagequalityindicators(duplexwiretype)-Determinationofimageunsharpnessvalue
【原文标准名称】:无损检验.辐射摄影的图像质量.第5部分:图像质量显示器(双线型).图像不清晰值的测定
【标准号】:ISO19232-5-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-07
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC135
【标准类型】:()
【标准水平】:()
【中文主题词】:摄影图像;利用;图象质量;试件;图像质量指示器;无损检验;放射性试验;射线检查;试验;不清晰;尺寸;辐射摄影术;规范(验收);射线摄影;测定;定义;材料试验;质量
【英文主题词】:Definitions;Determination;Dimensions;Imagequality;Imagequalityindicators;Materialstesting;Non-destructivetesting;Photographicimages;Quality;Radiographictesting;Radiographs;Radiography;Radioscopy;Specification(approval);Testpieces;Testing;Unsharpeness;Utilization
【摘要】:ThispartofISO19232specifiesamethodofdeterminingtheimageunsharpnessofradiographsandreal-timeradioscopicsystems.
【中国标准分类号】:H26
【国际标准分类号】:19_100
【页数】:3P.;A4
【正文语种】:英语


【英文标准名称】:Safetyoftransformers,reactors,powersupplyunitsandcombinationsthereof-Part2-23:Particularrequirementsandtestsfortransformersandpowersupplyunitsforconstructionsites
【原文标准名称】:变压器、反应器、供电机组及其它们的组合的安全性.第2-23部分:建筑工地用变压器和供电机组的试验和详细要求
【标准号】:IEC61558-2-23-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-08
【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/TC96
【标准类型】:()
【标准水平】:()
【中文主题词】:建筑工地;电路;建筑;施工设备;定义;尺寸规格;干式变压器;电气工程;电气安全;防火安全;图形符号;隔离变压器;电源设备;供电系统;电力变压器;防电击;安全性;安全隔离变压器;安全性要求;短路保护;小功率变压器;功率单位;电源电压;试验;变压器
【英文主题词】:Buildingsites;Circuits;Construction;Constructionequipment;Definitions;Dimensioning;Dry-typetransformers;Electricalengineering;Electricalsafety;Firesafety;Graphicsymbols;Isolatingtransformers;Mainsunits;Powersupplysystem;Powertransformers;Protectionagainstelectricshocks;Safety;Safetyisolatingtransformers;Safetyrequirements;Short-circuitprotection;Small-powertransformers;Supplyunits;Supplyvoltages;Testing;Transformers
【摘要】:ThispartofIEC61558dealswiththesafetyoftransformersforconstructionsitesandpowersupplyunitsincorporatingtransformersforconstructionsites.Transformersincorporatingelectroniccircuitsarealsocoveredbythisstandard.NOTE1Safetyincludeselectrical,thermalandmechanicalaspects.Unlessotherwisespecified,fromhereonward,thetermtransformercoverstransformersforconstructionsitesandpowersupplyunitsincorporatingtransformersforconstructionsites.Thispartisapplicabletostationaryorportable,single-phaseorpolyphase,air-cooled(naturalorforced)independentorassociatedtransformers,beingisolatingorsafetyisolatingdrytypetransformersfortheuseonconstructionsites.Thewindingsmaybeencapsulatedornon-encapsulated.Theratedsupplyvoltagedoesnotexceed1000Va.c.,andtheratedsupplyfrequencyandtheinternaloperatingfrequenciesdonotexceed500Hz.ThisstandardusedincombinationwithPart2-16forSwitchmodepowersupplyunits(SMPS)isalsoapplicabletopowersupplieswithinternaloperatingfrequencieshigherthan500Hz.WherethetworequirementsareinconflictthemostseveretakeprecedenceTheratedoutputdoesnotexceed:–25kVAforsingle-phasetransformers;–40kVAforpoly-phasetransformers.Thispartisapplicabletotransformerswithoutlimitationoftheratedoutputsubjecttoanagreementbetweenthepurchaserandthemanufacturer.NOTE2Transformersintendedtosupplydistributionnetworksarenotincludedinthescope.Isolatingtransformersandpowersupplyunitsincorporatingisolatingtransformersforconstructionsiteshaveano-loadoutputvoltageandaratedoutputvoltageexceeding50Va.c.andnotexceeding250Va.c.Safetyisolatingtransformersandpowersupplyunitsincorporatingsafetyisolatingtransformersforconstructionsiteshaveano-loadoutputvoltageandaratedoutputvoltagenotexceeding50Va.c.NOTE3ThisstandardisapplicabletotransformersforthesupplyofelectricityinlocationsasspecifiedinIEC60364-7-704.Thelatteralsospecifiestheprotectionbyusinganearthedmidpointorstarpointoftheoutputwinding.Transformersandpowersupplyunitscoveredbythispartareusedinapplicationswhereitisrequiredbytheinstallationrulesorbytheappliancespecificationforprotectionpurposes.WhenthetransformersorpowersupplyunitsareincorporatedintolowvoltageswitchgearandcontrolgearassembliesforconstructionsitesasspecifiedinIEC60439-4,theadditionalrequirementsofIEC60439-4willapplytotheassembly.NOTE4Fortransformersfilledwithliquiddielectricorpulverisedmaterial,suchassand,additionalrequirementsareunderconsideration.NOTE5Attentionisdrawntothefollowing:–measurestoprotecttheenclosureandthecomponentsinsidetheenclosureagainstexternalinfluenceslikefungus,vermin,termites,solar-radiationandicingshouldalsobeconsidered;–thedifferentconditionsfortransportation,storage,andoperationofthetransformersandpowersupplyunitsshouldalsobeconsidered;–additionalrequirementsinaccordancewithotherappropriatestandardsandnationalrulesmaybeapplicabletotransformersandpowersupplyunitsintendedforuseinspecialenvironmentssuchastropicalenvironment.NOTE6Futuretechnologicaldevelopmentoftransformersmaynecessitateaneedtoincreasetheupperlimitofthefrequencies,untilthenthisstandardmaybeusedasaguidancedocument.
【中国标准分类号】:K41
【国际标准分类号】:29_180
【页数】:46P.;A4
【正文语种】:英语