ISO 4293-1982 锰矿石和锰精矿磷含量的测定萃取钒钼酸盐光度法
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【英文标准名称】:Manganeseoresandconcentrates;Determinationofphosphoruscontent;Extraction-molybdovanadatephotometricmethod
【原文标准名称】:锰矿石和锰精矿磷含量的测定萃取钒钼酸盐光度法
【标准号】:ISO4293-1982
【标准状态】:现行
【国别】:国际
【发布日期】:1982-08
【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/TC65
【标准类型】:()
【标准水平】:()
【中文主题词】:锰矿石;试验;萃取分析法;镁矿石;磷;钒钼酸盐;含量测定;浓缩物;分光光度法;分光光度测量分析
【英文主题词】:Concentrates;Determinationofcontent;Extractionmethodsofanalysis;Magnesiumores;Manganeseores;Phosphorus;Spectrophotometry;Testing;Tests;Vanadomolybdates
【摘要】:Themethodisapplicabletoproductshavingphosphoruscontentsfrom0,02to0,5%(m/m).ISO4293shouldbereadinconjunctionwithISO4297.Specifiesprinciple,reagents,apparatus,sample,procedureandexpressionofresults.
【中国标准分类号】:D32
【国际标准分类号】:73_060_20
【页数】:3P;A4
【正文语种】:英语
【英文标准名称】:Informationtechnology-Magnetictapecartridgeforinformationinterchange0.50in(12.65mm),serialserpentine,128-Track,62500bpi(2460bpmm)DLT3format
【原文标准名称】:信息技术.0.50in(12.65mm)、串行螺旋形、128磁道、62500bpi(2460bpmm)DLT3格式化信息交换用盒式磁带
【标准号】:ANSIX3.282-1996
【标准状态】:现行
【国别】:美国
【发布日期】:1996
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;规范(验收);安全要求;磁带;标识符;信息交换;情报系统;文件;试验
【英文主题词】:magnetictapes;testing;definitions;specification(approval);informationsystems;files;tags(dataprocessing);safetyrequirements;informationinterchange
【摘要】:
【中国标准分类号】:L64
【国际标准分类号】:35_220_20
【页数】:74P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforDeterminingRadiopacityforMedicalUse
【原文标准名称】:医疗用辐射不透明度测定的标准试验方法
【标准号】:ASTMF640-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:F04.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:实验室医学;医疗设备;医学科学;塑料;射线照片;测试
【英文主题词】:implants;radiopacity;surgicalapplications;surgicaldevices;surgicalimplants;testmethods;X-ray
【摘要】:Thesemethodsareintendedtodeterminewhetheramaterial,product,orpartofaproducthasthedegreeofradiopacitydesiredforitsapplicationasamedicaldeviceinthehumanbody.Thesemethodsallowforbothqualitativeandquantitativeevaluationindifferentcomparativesituations.1.1ThesetestmethodscoverthedeterminationoftheradiopacityofmaterialsandproductsutilizingX-raybasedtechniques,includingfluoroscopy,angiography,CT(computedtomography)andDEXA,alsoknownasDXA,(dualenergyX-rayabsorptiometry).Theresultsofthesemeasurementsareanindicationofthelikelihoodoflocatingtheproductwithinthehumanbody.1.2TypesofTests-Therearethreemethodsoftestsdescribed,differinginthemethodofdeterminingradiopacity.1.2.1MethodA-Radiopacityis(1)qualitativelydeterminedbyviewingimage(s)ofatestsampleandtheimagebackground,withorwithouttheuseofabodymimic,or(2)quantitativelydeterminedasaspecificdifferenceinopticaldensityorpixelintensitybetweentheimageofatestsampleandtheimagebackground,withorwithouttheuseofabodymimic.1.2.2MethodB-Radiopacityisdeterminedby(1)qualitativelycomparingimage(s)ofatestsampleandauser-definedstandardwithouttheuseofabodymimic,or(2)quantitativelydeterminingthespecificdifferenceinopticaldensityorpixelintensitybetweentheimageofatestsampleandtheimageofauser-definedstandardwithouttheuseofabodymimic.1.2.3MethodC-Radiopacityisdeterminedby(1)qualitativelycomparingimage(s)ofatestsampleandauser-definedstandardwiththeuseofbodymimicor(2)quantitativelydeterminingthespecificdifferenceinopticaldensityorpixelintensitybetweentheimageofatestsampleandtheimageofauser-definedstandardwiththeuseofabodymimic.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G32;C04
【国际标准分类号】:11_120_01;83_080_01
【页数】:4P.;A4
【正文语种】:
