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Product Code:SAE J2487
Title:SAE No. 2 Friction Test Machine 3600 R/Min Stepped Power 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 3600 r/min Stepped Power Test for the evaluation of wet friction system performance variation as a function of power level. This procedure uses an initial engagement speed of 3600 r/min and 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:a. Friction Materialb. Fluidc. Reaction PlatesThese three variables must be clearly identified when reporting the results of using 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 碌PVT Test.

标准名称：	大麻涤纶混纺本色纱
发布部门：	中华人民共和国工业和信息化部
发布日期：	2012-12-28
实施日期：	2013-06-01
首发日期：
作废日期：
出版社：	中国标准出版社
出版日期：	2013-06-01

本标准规定了环锭纺细纱机生产的棉型大麻与涤纶混纺本色纱的产品品种、规格、要求、检验方法、检验规则和标志、包装、运输、储存。
本标准适用于鉴定大麻纤维（大麻纤维含量不低于30%）与涤纶纤维混纺本色纱的品质。
本标准亦适用于以大麻纤维、涤纶纤维为主体(混纺纤维含量不低于80%)，并含有其他纤维的混纺本色纱。

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