KS I ISO 7934:2021 Stationary source emissions — Determination of the mass concentration of sulfur dioxide — Hydrogen peroxide/barium perchlorate/Thorin method
2021KS I ISO 7934:2021 Stationary source emissions — Determination of the mass concentration of sulfur dioxide — Hydrogen peroxide/barium perchlorate/Thorin method
0000 KS I ISO 7934-2006(2016)
2006KS I ISO 7934:2006 Stationary source emissions-Determination of the mass concentration of sulfur dioxide(Hydrogen peroxide/barium perchlorate/thorin method)