Metallurgical slag hydrogen content measurement - involves lengthy melting in sealed furnace to ensure complete hydrogen extraction

摘要

Sample is melted in the presence of an inert gas in an oven at a temp. between 1600-2500 deg.C and the quantity of hydrogen given off measured. The sample is melted in a well sealed oven for a time sufficiently long to ensure the complete removal of hydrogen cpds. from the sample. After this has been done the hydrogen given off is extracted from the oven at the required temp. The method eliminates errors leading to too low a result caused by the incomplete reduction of water to hydrogen as a result of water vapour escaping from the reaction zone.