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BS 1747-9:1987 Methods for measurement of air pollution. Determination of the mass concentration of nitrogen oxides in ambient air: chemiluminescence method
standard by BSI Group, 09/30/1987
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Applicable to the measurement of NO up to a concentration of 12.5 mg/m^3 and of NO$d2 up to 19 mg/m^3 at 25C and 101.3 kPa.Cross References:
BS 4559:Section 1.1
BS 4559:Part 3
BS 4559:Part 7
ISO 6711
ISO 6879