SN/T 2740-2010 进口再生塑料原料中污染物的分离与鉴定方法
作者:标准资料网 时间:2024-05-12 18:43:56 浏览:9731
来源:标准资料网
基本信息
标准名称: | 进口再生塑料原料中污染物的分离与鉴定方法 |
英文名称: | Method for separation and identification of contaminants in import recycled plastic raw materials |
发布部门: | 国家质量监督检验检疫总局 |
发布日期: | 2010-11-01 |
实施日期: | 2011-05-01 |
首发日期: | |
作废日期: | |
起草单位: | 国家认证认可监督管理委员会 |
出版社: | 中国标准出版社 |
出版日期: | 2011-05-01 |
页数: | 12页 |
适用范围
没有内容
前言
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目录
没有内容
引用标准
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所属分类: 农业 林业 植物保护 植物检疫 病虫害防治
【英文标准名称】:StandardTestMethodforMeasuringAbrasionUsingtheDrySand/RubberWheelApparatus
【原文标准名称】:用干砂/橡胶轮装置测定磨蚀的标准试验方法
【标准号】:ASTMG65-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:G02.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;工艺;磨损;磨蚀;金属;磨蚀试验
【英文主题词】:abrasionresistance-metals/metallicmaterials;drysand/rubberwheeltest;metalsandmetallicmaterials;rubberwheeltest;resistanceofmetallicmaterialstoscratchingabrasion,bydry;Sand/RubberWheeltest
【摘要】:Theseverityofabrasivewearinanysystemwilldependupontheabrasiveparticlesize,shape,andhardness,themagnitudeofthestressimposedbytheparticle,andthefrequencyofcontactoftheabrasiveparticle.Inthispracticetheseconditionsarestandardizedtodevelopauniformconditionofwearwhichhasbeenreferredtoasscratchingabrasion(1and2).Thevalueofthepracticeliesinpredictingtherelativerankingofvariousmaterialsofconstructioninanabrasiveenvironment.Sincethepracticedoesnotattempttoduplicatealloftheprocessconditions(abrasivesize,shape,pressure,impact,orcorrosiveelements),itshouldnotbeusedtopredicttheexactresistanceofagivenmaterialinaspecificenvironment.Itsvalueliesinpredictingtherankingofmaterialsinasimilarrelativeorderofmeritaswouldoccurinanabrasiveenvironment.Volumelossdataobtainedfromtestmaterialswhoselivesareunknowninaspecificabrasiveenvironmentmay,however,becomparedwithtestdataobtainedfromamaterialwhoselifeisknowninthesameenvironment.Thecomparisonwillprovideageneralindicationoftheworthoftheunknownmaterialsifabrasionisthepredominantfactorcausingdeteriorationofthematerials.1.1Thistestmethodcoverslaboratoryproceduresfordeterminingtheresistanceofmetallicmaterialstoscratchingabrasionbymeansofthedrysand/rubberwheeltest.Itistheintentofthistestmethodtoproducedatathatwillreproduciblyrankmaterialsintheirresistancetoscratchingabrasionunderaspecifiedsetofconditions.1.2Abrasiontestresultsarereportedasvolumelossincubicmillimetresfortheparticulartestprocedurespecified.Materialsofhigherabrasionresistancewillhavealowervolumeloss.Note1Inordertoattainuniformityamonglaboratories,itistheintentofthistestmethodtorequirethatvolumelossduetoabrasionbereportedonlyinthemetricsystemascubicmillimetres.1mm3=6.102105in3.1.3Thistestmethodcoversfiverecommendedprocedureswhichareappropriateforspecificdegreesofwearresistanceorthicknessesofthetestmaterial.1.3.1ProcedureAThisisarelativelyseveretestwhichwillrankmetallicmaterialsonawidevolumelossscalefromlowtoextremeabrasionresistance.Itisparticularlyusefulinrankingmaterialsofmediumtoextremeabrasionresistance.1.3.2ProcedureBAshort-termvariationofProcedureA.Itmaybeusedforhighlyabrasiveresistantmaterialsbutisparticularlyusefulintherankingofmedium-andlow-abrasive-resistantmaterials.ProcedureBshouldbeusedwhenthevolume-lossvaluesdevelopedbyProcedureAexceeds100mm3.1.3.3ProcedureCAshort-termvariationofProcedureAforuseonthincoatings.1.3.4ProcedureDThisisalighterloadvariationofProcedureAwhichisparticularlyusefulinrankingmaterialsoflow-abrasionresistance.ItisalsousedinrankingmaterialsofaspecificgenerictypeormaterialswhichwouldbeverycloseinthevolumelossratesasdevelopedbyProcedureA.1.3.5ProcedureEAshort-termvariationofProcedureBthatisusefulintherankingofmaterialswithmedium-orlow-abrasionresistance.Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J04
【国际标准分类号】:17_040_20
【页数】:12P.;A4
【正文语种】:
基本信息
标准名称: | 液体烃的折射率和折射色散测定法 |
英文名称: | Test method for refractive index and refractive dispersion of hydrocarbon liquids |
中标分类: |
石油 >>
石油产品 >>
燃料油 |
ICS分类: |
石油及相关技术 >>
燃料 >>
燃料综合
|
发布日期: | 2003-03-18 |
实施日期: | 2003-05-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
出版日期: | 1900-01-01 |
页数: | 9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: 石油 石油产品 燃料油 石油及相关技术 燃料 燃料综合