EN 1885-2003 羽毛和绒毛.术语和定义

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【英文标准名称】:Intervalestimationofthepopulationvariance
【原文标准名称】:方差总数的区间预测
【标准号】:JISZ9058-1966
【标准状态】:作废
【国别】:日本
【发布日期】:1966-01-01
【实施或试行日期】:1966-01-01
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:BasicItems
【标准类型】:()
【标准水平】:()
【中文主题词】:估计;方差;统计离差;统计容许区间
【英文主题词】:statisticaldispersion;variance;estimation;statisticaltoleranceintervals
【摘要】:
【中国标准分类号】:A00
【国际标准分类号】:03_120_30
【页数】:3P;A4
【正文语种】:日语


Product Code:SAE J1748
Title:Methods for Determining Physical Properties of Polymeric Materials Exposed to Gasoline/Oxygenate Fuel Mixtures
Issuing Committee:Fuel Systems Standards Committee
Scope:This SAE Recommended Practice applies to determining worst-case fuel, conditioning test specimens in worst-case fuel(s) prior to testing, individual tests for properties of polymers exposed to methanol-gasoline fuel mixtures. The determination of equilibrium, as well as typical calculations are also covered.Polymers are used in applications which require exposure to a variety of fluid environments. Tests to determine the effects of such exposure on material properties are well established. However, the determination of the effects on polymers exposed to fuels of variable alcohol and ether content poses new problems. This document seeks to address those concerns by detailing changes to standard tests that make them suitable for that purpose.