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【英文标准名称】:StandardTestMethodforErosionofSolidMaterialsbyaCavitatingLiquidJet
【原文标准名称】:用气蚀喷液法测试固体材料腐蚀的标准试验方法
【标准号】:ASTMG134-1995(2006)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:G02.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:固体材料;侵蚀;试验;气蚀;腐蚀;固态材料;气蚀喷液;流体气蚀
【英文主题词】:cavitatingjet;cavitation;cavitationerosion;erosionbyliquids;erosionofsolids;erosiontest;flowcavitation
【摘要】:1.1Thistestmethodcoversatestthatcanbeusedtocomparethecavitationerosionresistanceofsolidmaterials.Asubmergedcavitatingjet,issuingfromanozzle,impingesonatestspecimenplacedinitspathsothatcavitiescollapseonit,therebycausingerosion.Thetestiscarriedoutunderspecifiedconditionsinaspecifiedliquid,usuallywater.Thistestmethodcanalsobeusedtocomparethecavitationerosioncapabilityofvariousliquids.1.2Thistestmethodspecifiesthenozzleandnozzleholdershapeandsize,thespecimensizeanditsmethodofmounting,andtheminimumtestchambersize.Proceduresaredescribedforselectingthestandoffdistanceandoneofseveralstandardtestconditions.Deviationfromsomeoftheseconditionsispermittedwhereappropriateandifproperlydocumented.Guidanceisgivenonsettingupasuitableapparatus,testandreportingprocedures,andtheprecautionstobetaken.Standardreferencematerialsarespecified;thesemustbeusedtoverifytheoperationofthefacilityandtodefinethenormalizederosionresistanceofothermaterials.1.3Twotypesoftestsareencompassed,oneusingtestliquidswhichcanberuntowaste,forexample,tapwater,andtheotherusingliquidswhichmustberecirculated,forexample,reagentwaterorvariousoils.Slightlydifferenttestcircuitsarerequiredforeachtype.1.4ThistestmethodprovidesanalternativetoTestMethodG32.Inthatmethod,cavitationisinducedbyvibratingasubmergedspecimenathighfrequency(20kHz)withaspecifiedamplitude.Inthepresentmethod,cavitationisgeneratedinaflowingsystemsothatboththejetvelocityandthedownstreampressure(whichcausesthebubblecollapse)canbevariedindependently.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:19_060
【页数】:14P.;A4
【正文语种】:


【英文标准名称】:StandardTestMethodforDeterminationofLowLevelsofAntimonyinCarbonandLow-AlloySteelbyGraphiteFurnaceAtomicAbsorptionSpectrometry
【原文标准名称】:石墨炉原子吸收光谱测定法测定碳和低合金钢中锑低含量的标准试验方法
【标准号】:ASTME1852-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:合金钢;锑;原子吸收光谱测定法;光谱测定法;试验方法
【英文主题词】:Alloysteels;Antimony;Atomicabsorptionspectrometry;Spectrometry;Testmethods
【摘要】:
【中国标准分类号】:H11
【国际标准分类号】:71_040_50
【页数】:4P;A4
【正文语种】:英语