BS 6069-4.1 1990 Edition, February 28, 1990
Characterization of air quality - Part 4: Stationary source emissions - Section 4.1 Method for the determination of the mass concentration of sulphur dioxide: Hydrogen peroxide/barium perchlorate/Thorin method
Additional Comments: SAME AS ISO 7934 * W/D NO S/S
Published By:British Standards Institution (BSI)
Applicable to gas concentrations of sulphur dioxide above 30 mg/m3 with a sampling period of 30 minutes. Applicable to emissions from combustion facilities and technical processes with negligible amounts of sulphur trioxide and sulphuric acid.