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Product Code:SAE AIR1871
Title:Lessons Learned From Developing, Implementing, and Operating a Health Management System for Propulsion and Drive Train Systems
Issuing Committee:E-32 Aerospace Propulsion Systems Health Management
Scope:SAE Aerospace Information Report AIR1871 provides valuable insight into lessons learned in the development, implementation, and operation of various health monitoring systems for propulsion engines and drive train systems. This document provides an overview of the lessons learned for ground-based systems, oil debris monitoring systems, lubrication systems, and Health and Usage Monitoring Systems (HUMS) for military and commercial programs. For each case study, this document presents a brief technical description, the design requirements, accomplishments, lessons learned, and future recommendations. The lessons learned presented in this document represent a fragment of the knowledge gained through experience when developing and implementing a propulsion health management system. Previous versions of this document contain additional lessons learned during the 1980’s and 1990’s that may be of additional value to the reader. This document will be maintained as technology progresses so that industry members may benefit from the lessons learned of others.

标准名称：	皮革 化学试验 pH的测定
英文名称：	Leather -- chemical test -- Determination of ph
中标分类：	轻工、文化与生活用品 >> 皮革加工与制品 >> 皮革加工与制品综合
ICS分类：	纺织和皮革技术 >> 皮革技术
替代情况：	QB/T 3812.19-1999(原标准号GB 4689.19-1984)
发布部门：	中华人民共和国国家发展和改革委员会
发布日期：	2005-03-19
实施日期：	2005-09-01
首发日期：	1900-01-01
作废日期：	1900-01-01
提出单位：	中国轻工业联合会
归口单位：	全国皮革工业标准化技术委员会
起草单位：	中国皮革和制鞋工业研究院
起草人：	赵立国
出版社：	中国轻工业出版社
出版日期：	2005-09-01
页数：	5页
书号：	155019.2772

本标准规定了皮革水萃取液的pH和稀释差的测定方法。本标准适用于各种类型的皮革。

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