BS 8494 - AbsoluteAstronomy.com

BS 8494 is a 2007 British Standard for portable apparatus designed to detect and measure carbon dioxide

Carbon dioxide

Carbon dioxide is a naturally occurring chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom...

in ambient air or extraction systems.

The source of this article is wikipedia, the free encyclopedia. The text of this article is licensed under the GFDL.