AS 2365.1.2-1990

AS 2365.1.2-1990 Methods for the sampling and analysis of indoor air - Determination of nitrogen dioxide - Spectrophotometric method - Treated filter/passive badge sampling procedures
standard by Standards Australia, 01/01/1990

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Sets out a spectrophotometric method for the determination of nitrogen dioxide in indoor air using a passive sampling treated filter technique. This method is applicable to indoor air in which the expected nitrogen dioxide concentration is within the range 0 to 3 ppm (V/V) (0 to 6000 ¿¿g/m(sup)3(/sup)) for an exposure time of 1 h, and has a detection limit of 0.35 ppm for a 2 h sampling period.