基本信息
| 标准名称： | 警服 春秋执勤服 |
| 英文名称： | Police uniform—Spring-autumn costume for policeman on duty |
| 中标分类： |
综合 >>
社会公共安全 >>
警用装备与器械 |
| ICS分类： |
服装工业 >>
服装
|
| 替代情况： | 被GA 563-2009代替 |
| 发布部门： | 中华人民共和国公安部 |
| 发布日期： | 2005-11-15 |
| 实施日期： | 2006-03-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2009-05-01 |
| 提出单位： | 公安部装备财务局 |
| 归口单位： | 公安部特种警用装备标准化技术委员会 |
| 起草单位： | 公安部装备财务局被装处、总后军需生产技术研究所、长春着装制衣有限公司、安徽省8503工厂 |
| 起草人： | 孙长林、于开林、孙萍、陆路等 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 2006-03-01 |
| 页数： | 27页 |
| 书号： | 155066.2-16641 |
适用范围
本标准规定了警察春秋执勤服的要求、检验及检验规则、标志、包装、运输及贮存。
本标准适用于警察春秋执勤服的生产、检验和订购等。
前言
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目录
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引用标准
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所属分类： 综合 社会公共安全 警用装备与器械 服装工业 服装
Product Code:SAE J2490
Title:SAE No. 2 Friction Test Machine Gmpvt Test
Issuing Committee:Automatic Transmission Friction Standards Committee
Scope: This SAE Recommended Practice is intended as the definition of a standard test, which 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 mPVT Test for the evaluation of the variation of wet friction system performance as a function of speed, temperature, and pressure. This procedure is intended as a standard for both suppliers and end users.The only variables selected by the supplier or user of the friction system are: a. Friction Material; b. Fluid; and c. Reaction Plates.These 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 intended to evaluate the endpoint/midpoint ratios, midpoint and breakaway coefficients. The procedure can be used to demonstrate changes that occur between the different levels of engagement speed, sump temperature and apply pressure. Refer to SAE J2487, SAE J2488, or SAE J2489 for coefficient variations due to changes in power level.The procedure, as described in detail in Table 1, consists of four 50 cycle break-in levels at 3500 r/min with increasing steps of apply pressure, followed by 16 levels consisting of 25 dynamic engagements and one breakaway following completion of the 25th dynamic cycle. The 16 levels are achieved by varying initial engagement speed, apply pressure and oil sump temperature while the inertia is kept constant at 0.701 kg- m2.
Rationale: This SAE Recommended Practice is intended as the definition of a standard test, which 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 mPVT Test for the evaluation of the variation of wet friction system performance as a function of speed, temperature, and pressure. This procedure is intended as a standard for both suppliers and end users.The only variables selected by the supplier or user of the friction system are: a. Friction Material; b. Fluid; and c. Reaction Plates.These 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 intended to evaluate the endpoint/midpoint ratios, midpoint and breakaway coefficients. The procedure can be used to demonstrate changes that occur between the different levels of engagement speed, sump temperature and apply pressure. Refer to SAE J2487, SAE J2488, or SAE J2489 for coefficient variations due to changes in power level.The procedure, as described in detail in Table 1, consists of four 50 cycle break-in levels at 3500 r/min with increasing steps of apply pressure, followed by 16 levels consisting of 25 dynamic engagements and one breakaway following completion of the 25th dynamic cycle. The 16 levels are achieved by varying initial engagement speed, apply pressure and oil sump temperature while the inertia is kept constant at 0.701 kg- m2.