您的位置: 标准下载 » 国内标准 » GB 国标 »

GB 3258.7-1982 铋精矿化学分析方法 硫酸钡重量法测定硫

作者:标准资料网 时间:2024-05-09 14:38:38  浏览:9849   来源:标准资料网
下载地址: 点击此处下载
基本信息
标准名称:铋精矿化学分析方法 硫酸钡重量法测定硫
中标分类: 矿业 >> 有色金属矿 >> 轻金属矿
替代情况:调整为YS/T 240.7-1994
发布日期:
实施日期:1983-03-01
首发日期:
作废日期:
出版日期:
页数:2页
适用范围

没有内容

前言

没有内容

目录

没有内容

引用标准

没有内容

所属分类: 矿业 有色金属矿 轻金属矿
下载地址: 点击此处下载
【英文标准名称】:Textiles-Quantitativechemicalanalysis-Part3:Mixturesofacetateandcertainotherfibres(methodusingacetone)(ISO1833-3:2006);GermanversionENISO1833-3:2010
【原文标准名称】:纺织品.定量化学分析.第3部分:纤维素和聚酯纤维的混合(硫酸法)(ISO1833-3-2006);德文版本ENISO1833-3-2010
【标准号】:ENISO1833-3-2010
【标准状态】:现行
【国别】:
【发布日期】:2011-01
【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】:乙酸酯;丙酮;分析;砝码;醋酸纤维素纤维;纤维素纤维;化学分析和试验;化学分析和测试;棉花;含量测定;纤维混纺织品;纤维;玻璃纤维;材料测试;材料试验;混合物;潮气;聚酰胺纤维;聚酯纤维;准备;定量分析;再生纤维素纤维;试样;样品;分离;试验;测试;痕量元素分析;;纺织纤维;纺织试验;纺织材料
【英文主题词】:Acetates;Acetone;Analysis;Celluloseacetatefibres;Cellulosefibres;Chemicalanalysisandtesting;Cotton;Determinationofcontent;Fibremixtures;Fibres;Glassfibres;Materialstesting;Mixtures;Moisture;Polyamidefibres;Polyesterfibres;Preparation;Quantitativeanalysis;Regeneratedcellulosefibres;Samples;Separation;Testing;Textilefibreblends;Textilefibres;Textiletesting;Textiles
【摘要】:
【中国标准分类号】:W55
【国际标准分类号】:59_060_20
【页数】:10P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforDeterminingJ-RCurvesofPlasticMaterials
【原文标准名称】:测定塑料材料J-R曲线的标准试验方法
【标准号】:ASTMD6068-1996(2002)e1
【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】:D20.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:材料试验;聚合材料;塑料和橡胶技术
【英文主题词】:crackgrowthresistance;fracturetoughness;J-Rcurves;plastics;polymers
【摘要】:AJ-Rcurveproducedinaccordancewiththistestmethodcharacterizesthecrackgrowthresistancesofawiderangeoftoughpolymersandpolymerblends(1-5)7thatcannotbeobtainedinsufficientsizeandthicknessforvalidcharacterizationbylinearelasticfracturemechanicsinTestMethodsD5045.TheJ-Rcurvecharacterizes,withinthelimitssetforthinthistestmethod,theresistanceofapolymericmaterialtoslowstablecrackgrowthafterinitiationfromapreexistingsharpflaw.AJ-Rcurvecanbeusedasanindexofmaterialtoughnessforblendoralloydesign,materialselection,materialsprocessing,andqualityassurance(6).TheJ-RcurvesfrombendspecimensrepresentlowerboundestimatesofJcapacityasafunctionofcrackextension,andhavebeenobservedtobeconservativerelativetothoseobtainedfromspecimenconfigurationsundertensileloading.TheJ-Rcurvesforagivenmaterialofconstantmicrostructuretendtoexhibitlowerslope(flatter)withincreasingthickness.Thus,itisrecommendedthatthelargestpossiblespecimenwithrepresentativemicrostructurebeused.TheJ-Rcurvecanbeusedtoassessthestabilityofcracksinstructuresinthepresenceofductiletearing,withawarenessofthedifferencesthatmayexistbetweenlaboratorytestandfieldconditions.AJ-Rcurvemaydependontheorientationandpropagationofthecrackinrelationtotheanisotropyofthematerialwhichmaybeinducedbyspecimenfabricationmethods.Becauseofthepossibilityofratedependenceofcrackgrowthresistance,J-Rcurvescanbedeterminedatdisplacementratesotherthanthatspecifiedinthistestmethod(7).1.1ThistestmethodcoversthedeterminationoftheJ-integralversuscrackgrowthresistance(J-R)curvesforpolymericmaterials.1.2Thistestmethodisintendedtocharacterizetheslow,stablecrackgrowthresistanceofbend-typespecimensinsuchamannerthatitisgeometryinsensitivewithinlimitssetforthinthistestmethod.1.3Therecommendedspecimensarethethree-pointbend(SE(B))andpin-loadedcompacttension(C(T))specimens.Bothspecimenshavein-planedimensionsofconstantproportionalityforallsizes.Specimenconfigurationsotherthanthoserecommendedinthistestmethodmayrequiredifferentproceduresandvalidityrequirements.1.4Thistestmethoddescribesamultiplespecimenmethodthatrequiresopticalmeasurementofcrackextensionfromfracturesurfaces.Itisnotrecommendedforusewithmaterialsinwhichthecrackfrontcannotbedistinguishedfromadditionaldeformationprocessesinadvanceofthecracktip.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;ThereisnoequivalentISOstandard.
【中国标准分类号】:G31
【国际标准分类号】:83_040_01
【页数】:8P.;A4
【正文语种】: