QJ 2076.5-1991 管道法兰 对焊钢法兰
作者:标准资料网 时间:2024-05-12 15:49:17 浏览:8001
来源:标准资料网
基本信息
| 标准名称： | 管道法兰 对焊钢法兰 |
| 中标分类： |
航空、航天 >>
航空器与航天器零部件 >>
管件、卡箍、密封件 |
| 替代情况： | QJ 235-78 |
| 发布日期： | 1991-01-19 |
| 实施日期： | 1991-07-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 15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： 航空 航天 航空器与航天器零部件 管件 卡箍 密封件
Product Code:SAE J636
Title:V-Belts and Pulleys
Issuing Committee:Belt Drive (Automotive) Systems Committee
Scope:This specification covers standard dimensions, tolerances, and methods of measurement of V-belts and pulleys for automotive V-belt drives.【英文标准名称】:TestMethodforBromineNumbersofPetroleumDistillatesandCommercialAliphaticOlefinsbyElectrometricTitration
【原文标准名称】:用电势滴定法测定石油馏分和商用脂肪族烯烃溴值的试验方法
【标准号】:ANSI/ASTMD1159-2007
【标准状态】:作废
【国别】:美国
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:脂肪族的;溴值;润滑剂;烯烃;石油;石油产品;质量;测试
【英文主题词】:Aliphatic;Brominenumber;Lubricants;Olefins;Petroleum;Petroleumproducts;Quality;Testing
【摘要】:Thistestmethodcoversthedeterminationofthebrominenumberofthefollowingmaterials:Petroleumdistillatesthataresubstantiallyfreeofmateriallighterthanisobutaneandthathave90%distillationpoints(byTestMethodD86)under327?C(626?F).Thistestmethodisgenerallyapplicabletogasoline(includingleaded,unleaded,andoxygenatedfuels),kerosine,anddistillatesinthegasoilrangethatfallinthefollowinglimits:Commercialolefinsthatareessentiallymixturesofaliphaticmono-olefinsandthatfallwithintherangeof95to165brominenumber(seeNote1).Thistestmethodhasbeenfoundsuitableforsuchmaterialsascommercialpropylenetrimerandtetramer,butenedimer,andmixednonenes,octenes,andheptenes.Thistestmethodisnotsatisfactoryfornormalalpha-olefins.Note1-Theselimitsareimposedsincetheprecisionofthistestmethodhasbeendeterminedonlyuptoorwithintherangeofthesebrominenumbers.Themagnitudeofthebrominenumberisanindicationofthequantityofbromine-reactiveconstituents,notanidentificationofconstituents;therefore,itsapplicationasameasureofolefinicunsaturationshouldnotbeundertakenwithoutthestudygiveninAnnexA1.Forpetroleumhydrocarbonmixturesofbrominenumberlessthan1.0,amoreprecisemeasureforbromine-reactiveconstituentscanbeobtainedbyusingTestMethodD2710.Ifthebrominenumberislessthan0.5,thenTestMethodD2710orthecomparablebromineindexmethodsforindustrialaromatichydrocarbons,TestMethodsD1492orD5776mustbeusedinaccordancewiththeirrespectivescopes.Thepracticeofusingafactorof1000toconvertbrominenumbertobromineindexisnotapplicablefortheselowervaluesofbrominenumber.ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificwarningstatements,seeSections7,8,and9.
【中国标准分类号】:E30
【国际标准分类号】:75_080;75_100
【页数】:
【正文语种】:英语
