SAE J2489 SAE No. 2 Friction Test Machine Durability Test

时间:2024-05-13 11:09:16 来源: 标准资料网 作者:标准资料网 阅读:8278
下载地址: 点击此处下载
Product Code:SAE J2489
Title:SAE No. 2 Friction Test Machine Durability Test
Issuing Committee:Automatic Transmission Friction Standards Committee
Scope:This SAE Recommended Practice is intended as the definition of a standard test, but may be subject to frequent change to keep pace with experience and technical advances. This should be kept in mind when considering its use.The SAE No 2 Friction Test Machine is used to evaluate the friction characteristics of automatic transmission plate clutches with automotive transmission fluids. It can also be used to conduct durability tests on wet friction systems.The specific purpose of this document is to define a Durability Test based on a specific power level selected from either the 3600 r/min Stepped Power Test or from the 6000 r/min Stepped Power Test, for the evaluation of wet friction system performance variation as a function of number of cycles. This procedure is intended as a standard procedure for common use by both suppliers and end users.The only variables selected by the supplier or user of the friction system are:--Friction Material--Fluid--Reaction PlatesThese three variables must be clearly identified when reporting the results of this test. If any of the test parameters or system hardware as described in this document are changed, other than the friction material, test fluid, or reaction plates, the data may not be reported as having been obtained using this document.This procedure is not intended to evaluate the initial coefficient or break-in characteristics. For this information, refer to SAE J2490 SAE No. 2 Friction Test Machine mPVT Test.
基本信息
标准名称:摩托车减震器试验方法
中标分类: 车辆 >> 摩托车 >> 承载系统
替代情况:被QC/T 62-2007替代
发布日期:1900-01-01
实施日期:1994-01-01
首发日期:1900-01-01
作废日期:2007-09-01
出版社:中国标准出版社
出版日期:1900-01-01
页数:6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: 车辆 摩托车 承载系统
【英文标准名称】:Airquality-Determinationofozoneinambientair-Ultravioletphotometricmethod
【原文标准名称】:空气质量环境空气中臭氧的测定紫外分光光度法
【标准号】:ISO13964-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-08
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC146
【标准类型】:()
【标准水平】:()
【中文主题词】:环境空气;紫外线辐射;空气质量;光度测量法(化学分析);测定;大气;臭氧;臭氧浓度;化学分析和试验
【英文主题词】:Airquality;Ambientair;Atmosphere;Chemicalanalysisandtesting;Determination;Ozone;Ozoneconcentration;Photometry(chemicalanalysis);Ultravioletradiation
【摘要】:ThisInternationalStandardspecifiesanultraviolet(UV)photometricmethodforthedeterminationofozoneinambientair.Itisapplicabletothedeterminationofozoneconcentrationsintherange2μg/m(volumefractionof1×10)to2mg/m(volumefractionof1×10).Furthermore,thisInternationalStandardusesthereferenceconditionsof25℃and101,25kPa;however,referencetemperaturesof0℃and20℃arealsoacceptable.Forcalibration,thisInternationalStandardspecifiesultravioletphotometryastheprimaryreferenceprocedure,becauseofitsprovenaccuracyandspecificitytoozone.Theuseofsecondaryreferenceprocedures(oftencalledtransferstandards),includingnon-UVmethods,isallowediftheyhavebeenpreviouslycalibratedbytheprimaryUVreferenceprocedure(seeISO6879fordefinitions).
【中国标准分类号】:Z15
【国际标准分类号】:13_040_20
【页数】:13P;A4
【正文语种】:英语