ANSI/ASHRAE 133-2008
直接蒸发空气冷却器的测试方法

Method of Testing Direct Evaporative Air Coolers

ANSI/ASHRAE 133-2008 发布历史

This proposed revision makes two key changes to Standard 133-2001. First, it decreases the difference between the dry-bulb and wet-bulb temperatures from 25 to 20°F (14 to 11° C), thus increasing the times when testing could be accomplished using unconditioned air while still not reducing the accuracy of the test. Second, it provides better flexibility by no longer limiting temperature measurement to specific types of instruments as long as they meet the requirements of ASHRAE Standard 41.1. All references were updated and ASHRAE Standard 41.2 (instead of 51) is referenced for measurement of airflow.

ANSI/ASHRAE 133-2008由美国国家标准学会 US-ANSI 发布于 2008。

ANSI/ASHRAE 133-2008 在中国标准分类中归属于: P48 通风、空调工程，在国际标准分类中归属于: 91.140.30 通风和空调。

ANSI/ASHRAE 133-2008的历代版本如下：

• 2008年 ANSI/ASHRAE 133-2008 直接蒸发空气冷却器的测试方法

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标准号

ANSI/ASHRAE 133-2008

发布日期

2008年

实施日期

废止日期

无

中国标准分类号

P48

国际标准分类号

91.140.30

发布单位

US-ANSI

被代替标准

ANSI/ASHRAE 133P-2001

适用范围

This proposed revision makes two key changes to Standard 133-2001. First, it decreases the difference between the dry-bulb and wet-bulb temperatures from 25 to 20°F (14 to 11° C), thus increasing the times when testing could be accomplished using unconditioned air while still not reducing the accuracy of the test. Second, it provides better flexibility by no longer limiting temperature measurement to specific types of instruments as long as they meet the requirements of ASHRAE Standard 41.1. All references were updated and ASHRAE Standard 41.2 (instead of 51) is referenced for measurement of airflow.