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ASTM D1943-2005 水的α粒子放射性的标准试验方法

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【英文标准名称】:StandardTestMethodforAlphaParticleRadioactivityofWater
【原文标准名称】:水的α粒子放射性的标准试验方法
【标准号】:ASTMD1943-2005
【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】:D19.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:α-辐射;核能;放射性;试验;水
【英文主题词】:grossalpharadioactivity;grossradioactivitymeasurement;proportionalcounter;water
【摘要】:Thistestmethodwasdevelopedforthepurposeofmeasuringgrossalpharadioactivityinwater.Itisusedfortheanalysisofbothprocessandenvironmentalwatertodeterminegrossalphaactivitywhichisoftenaresultofnaturalradioactivitypresentinminerals.1.1Thistestmethodcoversthemeasurementofalphaparticleactivityofwater.Itisapplicabletonuclidesthatemitalphaparticleswithenergiesabove3.9MeVandatactivitylevelsabove0.02Bq/mL(540pCi/L)ofradioactivehomogeneouswater.Thistestmethodisnotapplicabletosamplescontainingalpha-emittingradionuclidesthatarevolatileunderconditionsoftheanalysis.1.2Thistestmethodcanbeusedforeitherabsoluteorrelativedeterminations.Intracerwork,theresultsmaybeexpressedbycomparisonwithastandardthatisdefinedtobe100%.Forradioassay,datamaybeexpressedintermsofalphadisintegrationratesaftercalibrationwithasuitablestandard.GeneralinformationonradioactivityandmeasurementofradiationhasbeenpublishedandsummarizedinPracticeD3648.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:


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基本信息
标准名称:GK10型复盖链式线迹缝纫机机头
中标分类: 轻工、文化与生活用品 >> 钟表、自行车、缝纫机 >> 缝纫机
替代情况:被QB/T 2044-1994代替
发布日期:
实施日期:1991-07-01
首发日期:
作废日期:
出版日期:
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所属分类: 轻工 文化与生活用品 钟表 自行车 缝纫机 缝纫机
Product Code:SAE MA1586
Title:Wrench Configuration, 12 Spline Drive, Metric
Issuing Committee:Eg-1b Hand Tools Committee
Scope: Tools conforming to this standard will wrench fasteners having wrenching configurations per MA 1549. Nominal wrenching size value corresponds to maximum width across flats of comparable hexagon and double hexagon (12 Point) wrenching configurations. The wrench will fit all three configurations.
Rationale: Tools conforming to this standard will wrench fasteners having wrenching configurations per MA 1549. Nominal wrenching size value corresponds to maximum width across flats of comparable hexagon and double hexagon (12 Point) wrenching configurations. The wrench will fit all three configurations.