SN/T 1118-2002 铬矿中铬、硅、铁、铝、镁、钙的测定波长色散X射线荧光光谱法
时间:2024-05-20 23:15:47 来源: 标准资料网 作者：标准资料网 阅读：8566
基本信息
| 标准名称： | 铬矿中铬、硅、铁、铝、镁、钙的测定波长色散X射线荧光光谱法 |
| 英文名称： | Determination of chromium,silicon,iron,aluminium,magnesium and calcium in chromium ores-wavelength dispersive X-ray fluorescence spectrometric method |
| 中标分类： |
矿业 >>
黑色金属矿 >>
铬矿 |
| 发布部门： | 中华人民共和国国家质量监督检验检疫总局 |
| 发布日期： | 2002-05-20 |
| 实施日期： | 2002-11-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 起草单位： | 国家认证认可监督管理委员会 |
| 出版日期： | 1900-01-01 |
| 页数： | 平装16开， 页数：8， 字数：11千字 |
适用范围
本标准规定了用波长色散X射线荧光光谱法测定铬矿中铬、硅、铁、铝、镁和钙含量的方法。本标准适用于待测组分含量范围如表1所示的铬矿。
前言
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引用标准
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所属分类： 矿业 黑色金属矿 铬矿
【英文标准名称】:StandardTestMethodforTension-TensionFatigueofPolymerMatrixCompositeMaterials
【原文标准名称】:拉伸的标准试验方法.聚合物基体复合材料的拉伸疲劳
【标准号】:ASTMD3479/D3479M-1996(2007)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:D30.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compositematerials;fatigue;polymermatrixcomposites;properties
【摘要】:Thistestmethodisdesignedtoyieldtensilefatiguedataformaterialspecifications,researchanddevelopment,qualityassurance,andstructuraldesignandanalysis.Theprimarytestresultisthefatiguelifeofthetestspecimenunderaspecificloadingandenvironmentalcondition.Replicatetestsmaybeusedtoobtainadistributionoffatiguelifeforspecificmaterialtypes,laminatestackingsequences,environments,andloadingconditions.Guidanceinstatisticalanalysisoffatiguelifedata,suchasdeterminationoflinearizedstresslife(S-N)orstrain-life(x03B5;-N)curves,canbefoundinPracticeE739.Thistestmethodcanbeutilizedinthestudyoffatiguedamageinapolymermatrixcompositesuchastheoccurrenceofmicroscopiccracks,fiberfractures,ordelaminations.3Thespecimenrsquo;residualstrengthorstiffness,orboth,maychangeduetothesedamagemechanisms.Thelossinstiffnessmaybequantifiedbydiscontinuingcyclicloadingatselectedcycleintervalstoobtainthequasi-staticaxialstress-straincurveusingmodulusdeterminationproceduresfoundinTestMethodD3039/D3039M.ThelossinstrengthassociatedwithfatiguedamagemaybedeterminedbydiscontinuingcyclicloadingtoobtainthestaticstrengthusingTestMethodD3039/D3039M.Note18212;Thistestmethodmaybeusedasaguidetoconducttension-tensionvariableamplitudeloading.Thisinformationcanbeusefulintheunderstandingoffatiguebehaviorofcompositestructuresunderspectrumloadingconditions,butisnotcoveredinthistestmethod..1.1Thistestmethoddeterminesthefatiguebehaviorofpolymermatrixcompositematerialssubjectedtotensilecyclicloading.Thecompositematerialformsarelimitedtocontinuous-fiberordiscontinuous-fiberreinforcedcompositesforwhichtheelasticpropertiesarespeciallyorthotropicwithrespecttothetestdirection.Thistestmethodislimitedtounnotchedtestspecimenssubjectedtoconstantamplitudeuniaxialin-planeloadingwheretheloadingisdefinedintermsofatestcontrolparameter.1.2Thistestmethodpresentstwoprocedureswhereeachdefinesadifferenttestcontrolparameter.1.2.1ProcedureA-Asysteminwhichthetestcontrolparameteristheload(stress)andthemachineiscontrolledsothatthetestspecimenissubjectedtorepetitiveconstantamplitudeloadcycles.Inthisprocedure,thetestcontrolparametermaybedescribedusingeitherengineeringstressorappliedloadasaconstantamplitudefatiguevariable.1.2.2ProcedureB-Asysteminwhichthetestcontrolparameteristhestrainintheloadingdirectionandthemachineiscontrolledsothatthetestspecimenissubjectedtorepetitiveconstantamplitudestraincycles.Inthisprocedure,thetestcontrolparametermaybedescribedusingengineeringstrainintheloadingdirectionasaconstantamplitudefatiguevariable.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetexttheinch-poundunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththisstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:83_140_20
【页数】:6P.;A4
【正文语种】:
【英文标准名称】:Aerospace-Airframeballbearings,singlerow,rigid,diameterseries0and2-Metricseries
【原文标准名称】:航空航天系列.直径系列0和2的单列刚性机身滚球轴承.米制系列
【标准号】:ANSI/ABMA/ISO14202-1998
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【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】:验收试验;航空航天运输;航空运输;航空器;机身;飞机机架轴承;滚珠轴承;厘米克秒制;特性;定义;名称与符号;尺寸;有槽球轴承;极限偏差;荷载能力;润滑;材料;材料规范;米制的;外形尺寸;性能;滚柱轴承;滚动轴承;单列轴承;航天运输;规范(验收);表面处理
【英文主题词】:Acceptancetests;Aerospacetransport;Airtransport;Aircraft;Airframe;Airframebearings;Ballbearings;CGSsystem;Characteristics;Definition;Definitions;Designations;Dimensions;Groovedballbearings;Limitdeviations;Loadcapacity;Lubrication;Materials;Materialsspecification;Metric;Overalldimensions;Properties;Rollerbearings;Rollingbearings;Single-rowbearings;Spacetransport;Specification(approval);Surfacetreatment
【摘要】:Specifiesthecharacteristics,boundarydimensions,tolerances,internalclearancesandpermissibleloadsofmetricseries-singlerow,rigidballbearingsofdiameterseries0and2,inaccordancewithISO15,usedinairframeapplications
【中国标准分类号】:V22
【国际标准分类号】:49_035
【页数】:
【正文语种】:英语