EN 61242-2006 电气附件.家用和类似用途卷线盘(IEC61242-1995,修改件)

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下一篇: EN 50366-2006 家用和类似用途电器装置.电磁场.评价和测量方法

【英文标准名称】:Foodstuffs-Determinationoflipophilicalgaltoxins(okadaicacidgrouptoxins,yessotoxins,azaspiracids,pectenotoxins)inshellfishandshellfishproductsbyLC-MS/MS;GermanversionEN16204:2012
【原文标准名称】:食品.利用液相色谱-质谱联用仪法/质谱法进行(LC-MS/MS)甲壳类动物和甲壳类产品中亲脂性藻毒素(冈田酸根毒素,虾夷扇贝毒素,原多甲藻酸,扇贝毒素)测定.德文版本EN16204-2012
【标准号】:EN16204-2012
【标准状态】:现行
【国别】:
【发布日期】:2012-08
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:藻类;藻毒素;化学分析和测试;含量测定;有害健康;萃取;食品检验;食品;食品检测;高效液相色谱法;高效液相色谱分析法;实验室间试验;试验研究;亲脂;霉菌毒素;基准方法;水生贝壳类动物;试验;毒素;验证
【英文主题词】:Algae;Algaltoxins;Chemicalanalysisandtesting;Determinationofcontent;Detrimentaltohealth;Extraction;Foodinspection;Foodproducts;Foodtesting;Highperformanceliquidchromatography;HPLC;Inter-laboratorytests;Investigations;Lipophile;Mycotoxin;Referencemethods;Shellfish;Testing;Toxin;Verification
【摘要】:
【中国标准分类号】:B50
【国际标准分类号】:67_120_30
【页数】:41P;A4
【正文语种】:英语


【英文标准名称】:StandardPracticeforX-RayDeterminationofRetainedAusteniteinSteelwithNearRandomCrystallographicOrientation
【原文标准名称】:近随机结晶定向钢中残留奥氏体的X射线测定标准实施规程
【标准号】:ASTME975-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:E04.11
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:奥氏体;试验;X射线;金相学;工艺;金属;钢;结晶的
【英文主题词】:austenite;crystallographicorientation;ferrite;martensite;retainedaustenite;X-raydiffraction;
【摘要】:Significance8212;Retainedaustenitewithanearrandomcrystallographicorientationisfoundinthemicrostructureofheat-treatedlow-alloy,high-strengthsteelsthathavemedium(0.40weight%)orhighercarboncontents.Althoughthepresenceofretainedaustenitemaynotbeevidentinthemicrostructure,andmaynotaffectthebulkmechanicalpropertiessuchashardnessofthesteel,thetransformationofretainedaustenitetomartensiteduringservicecanaffecttheperformanceofthesteel.Use8212;Themeasurementofretainedaustenitecanbeincludedinlow-alloysteeldevelopmentprogramstodetermineitseffectonmechanicalproperties.Retainedaustenitecanbemeasuredonacompanionsampleortestsectionthatisincludedinaheat-treatedlotofsteelaspartofaqualitycontrolpractice.Themeasurementofretainedausteniteinsteelsfromservicecanbeincludedinstudiesofmaterialperformance.1.1Thispracticecoversthedeterminationofretainedaustenitephaseinsteelusingintegratedintensities(areaunderpeakabovebackground)ofX-raydiffractionpeaksusingchromiumKormolybdenumKX-radiation.1.2Themethodappliestocarbonandalloysteelswithnearrandomcrystallographicorientationsofbothferriteandaustenitephases.1.3Thispracticeisvalidforretainedaustenitecontentsfrom1%byvolumeandabove.1.4Ifpossible,X-raydiffractionpeakinterferencefromothercrystallinephasessuchascarbidesshouldbeeliminatedfromtheferriteandaustenitepeakintensities.1.5Substantialalloycontentsinsteelcausesomechangeinpeakintensitieswhichhavenotbeenconsideredinthismethod.Applicationofthismethodtosteelswithtotalalloycontentsexceeding15weight%shouldbedonewithcare.Ifnecessary,theuserscancalculatethetheoreticalcorrectionfactorstoaccountforchangesinvolumeoftheunitcellsforausteniteandferriteresultingfromvariationsinchemicalcomposition.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H26
【国际标准分类号】:77_080_20
【页数】:7P.;A4
【正文语种】: