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标准名称：	生活饮用水卫生标准 生活饮用水标准检验方法
英文名称：	Standards for drinking water quality
中标分类：	医药、卫生、劳动保护 >> 卫生 >> 环境卫生
ICS分类：	环保、保健与安全 >>
发布部门：	中华人民共和国卫生部 中国国家标准化管理委员会
发布日期：	2006-12-29
实施日期：	2007-07-01
首发日期：
作废日期：
主管部门：	中华人民共和国卫生部
提出单位：	中华人民共和国卫生部、建设部、水利部、国土资源部、国家环境保护总局等
归口单位：	中华人民共和国卫生部
起草单位：	中国疾病预防控制中心环境与健康相关产品安全所、广东省卫生监督所、浙江省卫生监督所等
起草人：	金银龙、陈昌杰、陈西平、张岚、陈亚研等
出版社：	中国标准出版社
出版日期：	2007-05-01
页数：	482页
书号：	155066.1-29436

本标准规定了生活饮用水水质卫生要求、生活饮用水水源水质卫生要求、集中式供水单位卫生要求、二次供水卫生要求、涉及生活饮用水卫生安全产品卫生要求、水质监测和水质检验方法。本标准适用于城乡各类集中式供水的生活饮用水，也适用于分散式供水的生活饮用水。

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Product Code:SAE J2082
Title:Cooling Flow Measurement Techniques
Issuing Committee:Road Vehicle Aerodynamics Forum Committee
Scope: This SAE Information Report has been prepared by the Standards Committee on cooling flow measurement (CFM) at the request of the SAE Road Vehicle Aerodynamics Forum Committee (RVAC). The committee was formed in January 1985 for the purpose of investigating what measuring techniques are used by automotive product manufacturers to determine air cooling air flow rates and, if possible, to synthesize these into a recommended practice report. Although a great deal is already known about engine cooling, recent concern with fuel conservation has resulted in generally smaller air intakes whose shape and location are dictated primarily by low vehicle drag/high forward speed requirements. The new vehicle intake configurations make it more difficult to achieve adequate cooling under all conditions. They cause cooling flow velocity profiles to become distorted and underhood temperatures to be excessively high. Such problems make it necessary to achieve much better accuracy in measuring cooling flows. As the following descriptions show, each company or institution concerned with this problem has invested a lot of time and as a result gained considerable experience in developing measuring techniques that appear to achieve reliable results. There is however, little uniformity at the present time among the methods used by different companies and no indication at this time of a trend towards a simple and universally acceptable measuring technique. If one can make generalizations, it seems that the North American industry appears to use vane anemometers, whereas the European industry appears to favor pressure measurements for determining cooling air flows. Usually cooling flow measurement makes use of ensemble average calibrations of arrayed sensors. The major drawback of ensemble averaging usage of sensors appears to be the need for prior calibration of each combination of sensor array and radiator/vehicle front-end configuration. While there appears to be a growing interest in also knowing flow distributions--which necessitates the use of a plurality of sensing devices--very little is made of area-averaging techniques. Given the present state of the technology, this report covers simply an overview of the different measuring techniques deployed in the industry, and it is left to the future to report on developments towards a unified cooling flow measurement method. Appendices A and B present a number of problem statements that were identified during the present CFM review and whose solution would promote a better understanding of cooling flow measurement generally.
Rationale: This SAE Information Report has been prepared by the Standards Committee on cooling flow measurement (CFM) at the request of the SAE Road Vehicle Aerodynamics Forum Committee (RVAC). The committee was formed in January 1985 for the purpose of investigating what measuring techniques are used by automotive product manufacturers to determine air cooling air flow rates and, if possible, to synthesize these into a recommended practice report. Although a great deal is already known about engine cooling, recent concern with fuel conservation has resulted in generally smaller air intakes whose shape and location are dictated primarily by low vehicle drag/high forward speed requirements. The new vehicle intake configurations make it more difficult to achieve adequate cooling under all conditions. They cause cooling flow velocity profiles to become distorted and underhood temperatures to be excessively high. Such problems make it necessary to achieve much better accuracy in measuring cooling flows. As the following descriptions show, each company or institution concerned with this problem has invested a lot of time and as a result gained considerable experience in developing measuring techniques that appear to achieve reliable results. There is however, little uniformity at the present time among the methods used by different companies and no indication at this time of a trend towards a simple and universally acceptable measuring technique. If one can make generalizations, it seems that the North American industry appears to use vane anemometers, whereas the European industry appears to favor pressure measurements for determining cooling air flows. Usually cooling flow measurement makes use of ensemble average calibrations of arrayed sensors. The major drawback of ensemble averaging usage of sensors appears to be the need for prior calibration of each combination of sensor array and radiator/vehicle front-end configuration. While there appears to be a growing interest in also knowing flow distributions--which necessitates the use of a plurality of sensing devices--very little is made of area-averaging techniques. Given the present state of the technology, this report covers simply an overview of the different measuring techniques deployed in the industry, and it is left to the future to report on developments towards a unified cooling flow measurement method. Appendices A and B present a number of problem statements that were identified during the present CFM review and whose solution would promote a better understanding of cooling flow measurement generally.