LY/T 1510-1999 剖开材检验

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标准名称：	天然饰面石材试验方法 第4部分：耐磨性试验方法
英文名称：	Test methods for natural facing stones-Part 4:Test method for abrasion resistance
中标分类：	建材 >> 建材产品 >> 石材制品
ICS分类：
替代情况：	GB/T 9966.4-1988
发布部门：	中华人民共和国国家质量监督检验检疫总局
发布日期：	2001-12-30
实施日期：	2002-08-01
首发日期：	1988-10-26
作废日期：	1900-01-01
主管部门：	中国建筑材料工业协会
提出单位：	国家建筑材料工业局
归口单位：	中国建筑材料工业协会
起草单位：	国家建材局人工晶体研究所
起草人：	赫延明、王景祥、郑春歧、刘武强、肖建平、胡家奇、何宁
出版社：	中国标准出版社
出版日期：	2002-08-01
页数：	5页

本标准规定了天然饰面石材耐磨性试验所用设备及量具、试样、试验步骤、结果计算和试验报告。本标准适用于天然石材的耐磨性试验。

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Product Code:SAE AIR5774
Title:Composite Fuel Tanks, Fuel System Design Considerations
Issuing Committee:Ae-5 Aerospace Fuel, Oil And Oxidizer Systems Committee
Scope: 1. SCOPEThis AIR is a compilation of engineering references and data useful to the technical community that can be used to ensure fuel system compatibility with composite structure. This AIR is not a complete detailed design guide and is not intended to satisfy all potential fuel system applications. Extensive research, design and development is required for each individual application. 1.1 PurposeThis document is intended to serve as guidance to airframe and equipment manufacturers for the design and installation of fuel systems into composite structure. This document is not intended to be a fully definitive specification, but concentrates on areas where it is felt guidance is needed. The purpose of this AIR is to compile one definitive source of the references, rules, regulations and preferred practices for the development of a fuel system in composite structure. This AIR sets forth some useful design considerations for work with composites as it relates to the fuel system.1.2 BackgroundThe development and installation of a fuel system in composite structure introduces a variety of design situations which are different from aluminium. The differences are related to the properties of the composite material. As an example these may include low electrical and thermal conductivity, greater design sensitivity to holes, reduced shielding from electromagnetic radiation, reduced conductivity of lightning and potential corrosion in graphite aluminum interfaces.1.3 Field of ApplicationThis AIR applies to the aerospace industry and specifically to aircraft that use common petroleum fuels.
Rationale: 1. SCOPEThis AIR is a compilation of engineering references and data useful to the technical community that can be used to ensure fuel system compatibility with composite structure. This AIR is not a complete detailed design guide and is not intended to satisfy all potential fuel system applications. Extensive research, design and development is required for each individual application. 1.1 PurposeThis document is intended to serve as guidance to airframe and equipment manufacturers for the design and installation of fuel systems into composite structure. This document is not intended to be a fully definitive specification, but concentrates on areas where it is felt guidance is needed. The purpose of this AIR is to compile one definitive source of the references, rules, regulations and preferred practices for the development of a fuel system in composite structure. This AIR sets forth some useful design considerations for work with composites as it relates to the fuel system.1.2 BackgroundThe development and installation of a fuel system in composite structure introduces a variety of design situations which are different from aluminium. The differences are related to the properties of the composite material. As an example these may include low electrical and thermal conductivity, greater design sensitivity to holes, reduced shielding from electromagnetic radiation, reduced conductivity of lightning and potential corrosion in graphite aluminum interfaces.1.3 Field of ApplicationThis AIR applies to the aerospace industry and specifically to aircraft that use common petroleum fuels.