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Product Code:SAE J2277
Title:Shot Peening Coverage Determination
Issuing Committee:Surface Enhancement Committee
Scope:This SAE Recommended Practice provides procedures for determining shot peening coverage.Effectiveness of shot peening is directly dependent on coverage. Inadequate or excessive coverage may be detrimental to fatigue strength and life.【英文标准名称】:Ethanolasablendingcomponentforpetrol-Determinationofhigheralcohols,methanolandvolatileimpurities-Gaschromatographicmethod;GermanversionEN15721:2009
【原文标准名称】:作为汽油混合组分之一的乙醇.高级醇,甲醇和挥发性杂质的测定.气相色谱法.德文版本EN15721-2009
【标准号】:DINEN15721-2009
【标准状态】:现行
【国别】:德国
【发布日期】:2009-07-01
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:添加剂;酒精;机动车燃料;混合组分;化学分析和试验;含量;含量测定;乙醇;气相色谱法;汽油;汽油添加剂;杂质;实验室间试验;数学计算;甲醇;石油产品;性能;试验设备;试验;挥发性的
【英文主题词】:Additives;Alcohols;Automotivefuels;Blendingcomponents;Chemicalanalysisandtesting;Content;Determinationofcontent;Ethanol;Gaschromatography;Gasoline;Gasolineadditives;Impurities;Inter-laboratorytests;Mathematicalcalculations;Methanol;Petroleumproducts;Properties;Testequipment;Testing;Volatile
【摘要】:Thisstandardspecifiesagaschromatographicmethodforethanol,inwhichhigheralcohols(propan-l-ol,butan-l-ol,butan-2-ol,2-methylpropan-l-ol(isobutanol),2-methylbutan-l-ot,and3-methylbutan-l-ol)upto2,5%(m/m),methanolupto3%(m/m)andothervolatileimpurities,especiallyethyl-ethanoate(ethylacetate),ethanal(aceticaldehyde)and1,1-diethoxyethane(acetal)intherangeupto2%(m/m)aredetermined.Duetopossibleinterferencesthemethodisnotapplicabletodenaturedethanolsamples.NOTEForthepurposesofthisdocument,theterm"%(m/m)"isusedtorepresentthemassfractionofamaterial.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:23P.;A4
【正文语种】:德语