SAE J420 Magnetic Particle Inspection
时间:2024-05-20 15:38:51 来源: 标准资料网 作者：标准资料网 阅读：8156
Product Code:SAE J420
Title:Magnetic Particle Inspection
Issuing Committee:Metals Technical Executive Steering Committee
Scope:The scope of this SAE Information Report is to provide general information relative to the nature and use of magnetic particles for nondestructive testing. The document is not intended to provide detailed technical information, but will serve as an introduction to the theory and capabilities of magnetic particle testing, and as a guide to more extensive references.
【英文标准名称】:StandardTestMethodsforRubberDeterioration&8212;ReferenceandAlternativeMethod(s)forDeterminingOzoneLevelinLaboratoryTestChambers
【原文标准名称】:橡胶变质的标准试验方法.测定实验室测试小室内臭氧浓度的参照法和交替法
【标准号】:ASTMD4575-1999(2005)
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:D11.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:变坏;臭氧;炭黑;橡胶;含量测定;合成橡胶;试验;天然橡胶
【英文主题词】:chemical;deterioration;ozonemeasurement;rubbertest;ultraviolet
【摘要】:Generalpurposeandmanyspecialtyrubberswillundergoozonecrackingwhenexposedtoozonecontainingatmospheres,whenthetestspecimensoractualuseproductsareunderacertaindegreeoftensilestrain.Certainadditivessuchasantiozonantsandwaxesinhibitorpreventthiscracking.Variousrubbersandrubberformulationscontainingsuchadditivesarecustomarilyevaluatedunderstaticordynamictensilestraininlaboratoryozonechambers.ThisstandardprovidesforanaccurateassessmentoftheozonecontentofsuchchambersusedinTestMethodsD518,D1149,D1171,D3395andISOStandard1431I/II/III.Foradditionalinformationonozoneanalysis,refertoCodeofFederalRegulations;Title40Parts1to51.1.1Thesetestmethodscoverthefollowingthreetypesofmethodsforthedeterminationofozonecontentinlaboratorytestchambers.MethodA(UVabsorption)isspecifiedforreferenceorrefereepurposesandasameansofcalibrationforthealternativemethods;MethodB,instrumentaldevice(electrochemicalorchemiluminescence);andMethodC,wetchemicaltechniques(see).Thesemethodsareprimarilyintendedforusewithtestsfordeterminingrubberozonecrackingresistanceandthusareapplicableovertheozonelevelrangefrom25to200mPa.Note1Priorto1978,ozoneconcentrationswereexpressedinASTMD11Standardsinpartsperhundredmillion(pphm)ofairbyvolume.Seeforanexplanationofthechangetopartialpressureinmillipascals(mPa).1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Foraspecifichazardstatement,seeNote0and.Note0Warning-Ozoneisahazardouschemical.
【中国标准分类号】:G34
【国际标准分类号】:83_060
【页数】:10P.;A4
【正文语种】:
【英文标准名称】:StandardTestMethodforTrueSpecificGravityofRefractoryMaterialsbyGas-ComparisonPycnometer
【原文标准名称】:用气体比重法测定耐火材料真实比重的标准试验方法
【标准号】:ASTMC604-2002
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:耐火材料;密度测定瓶;试验
【英文主题词】:refractorymaterials;densitybottles;testing
【摘要】:
【中国标准分类号】:Q40
【国际标准分类号】:81_080
【页数】:3P;A4
【正文语种】:英语