DIN 16080-1975 带管状弹簧的过压测量仪.外壳规格为72×72.96×96.144×144.精度级别为1.0.1.6.2.5和4.0尺寸和指示范围

上一篇: DIN 1355 Bb.1-1975 时间.历法.星期.日期.钟点
下一篇: DIN 16081-1975 带盒簧的过压测量仪.外壳规格为96×96和144×144.精度级别为1.0.1.6.2.5和4.0.尺寸和指示范围

标准名称：	铝及铝合金化学分析方法 第18部分：铬含量的测定
英文名称：	Methods for chemical analysis of aluminium and aluminium alloys - Part 18：Determination of chromium content
中标分类：	冶金 >> 金属化学分析方法 >> 轻金属及其合金分析方法
ICS分类：	冶金 >> 有色金属 >> 铝和铝合金
替代情况：	替代GB/T 6987.30-2001;GB/T 6987.18-2001
发布部门：	中华人民共和国国家质量监督检验检疫总局 中国国家标准化管理委员会
发布日期：	2008-03-31
实施日期：	2008-09-01
首发日期：	1986-10-24
作废日期：
主管部门：	中国有色金属工业协会
提出单位：	中国有色金属工业协会
归口单位：	全国有色金属标准化技术委员会
起草单位：	东北轻合金有限责任公司、中国有色金属工业标准计量质量研究所、广州有色金属研究院
起草人：	戴凤英、刘天平、张永进、席欢、谢辉等
出版社：	中国标准出版社
出版日期：	2008-06-01
页数：	13页
计划单号：	20061016-T-610
书号：	155066·1-31669

本标准规定了铝及铝合金中铬含量的测定方法。本方法适用于铝及铝合金中铬含量的测定。测定范围：（方法1）0.0001%--0.60%。（方法2）0.010%--0.60%。本部分代替ＧＢ／Ｔ６９８７．１８—２００１《铝及铝合金化学分析方法　火焰原子吸收光谱法测定铬量》和ＧＢ／Ｔ６９８７．３０—２００１《铝及铝合金化学分析方法　萃取分离二苯基碳酰二肼分光光度法测定铬量》。
与ＧＢ／Ｔ６９８７．１８—２００１相比主要变化如下：
———将６９８７．３０—２００１内容作为本部分的“方法一：萃取分离二苯基碳酰二肼分光光度法”，原标准内容作为“方法二：火焰原子吸收光谱法”；
———将测定范围由０．００３０％～０．６０％修订为０．０１０％～０．６０％；
———增加了“重复性”条款；
———增加了“质量保证与控制”条款；
———对允许差进行了修改。

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Product Code:SAE J2765
Title:Procedure for Measuring System COP [Coefficient of Performance] of a Mobile Air Conditioning System on a Test Bench
Issuing Committee:Interior Climate Control Committee
Scope: 1.1This Standard applies to motor driven mobile air conditioning systems consisting of one in-car air coil (evaporator), a compressor, an expansion device, and one under-hood air coil (condenser). 1.1.1This standard can also be used for measuring systems that use electrically driven compressor if measurement of input power to compressor is carefully considered.1.1.2This standard can also be used for measuring systems that include the entire air handling system if air side pressure drop for the entire vehicle system is carefully considered.1.1.3This standard can also be used for measuring systems that include the entire front end cooling module if air side pressure drop for the entire vehicle system is carefully considered.1.1.4This standard can also be used for measuring systems that include a secondary cooling loop if the power to drive the pumps in this system is carefully considered.1.2This Standard specifies procedures, apparatus, and instrumentation that will produce accurate steady state capacity and efficiency data for refrigerant components.1.3This Standard does not:1.3.1Specify tests for dual evaporator systems,1.3.2Specify transient test methods, 1.3.3Make recommendations for safety1.3.4Specify tests for production, specification compliance, or field testing of mobile air conditioning systems.
Rationale: 1.1This Standard applies to motor driven mobile air conditioning systems consisting of one in-car air coil (evaporator), a compressor, an expansion device, and one under-hood air coil (condenser). 1.1.1This standard can also be used for measuring systems that use electrically driven compressor if measurement of input power to compressor is carefully considered.1.1.2This standard can also be used for measuring systems that include the entire air handling system if air side pressure drop for the entire vehicle system is carefully considered.1.1.3This standard can also be used for measuring systems that include the entire front end cooling module if air side pressure drop for the entire vehicle system is carefully considered.1.1.4This standard can also be used for measuring systems that include a secondary cooling loop if the power to drive the pumps in this system is carefully considered.1.2This Standard specifies procedures, apparatus, and instrumentation that will produce accurate steady state capacity and efficiency data for refrigerant components.1.3This Standard does not:1.3.1Specify tests for dual evaporator systems,1.3.2Specify transient test methods, 1.3.3Make recommendations for safety1.3.4Specify tests for production, specification compliance, or field testing of mobile air conditioning systems.