Full Description

Application to products containing at least 98 % of elemental sulphur, expressed as a percentage by mass, of the product dried at 80 C for 2 h. The difference between the ash and the residue corresponds to the "non-volatile bituminous matter" content at 200 C. The principle of ashing consists in slow combustion in air of a test portion of the dried product. Heating in a furnace, controlled at 850 C to 900 C, and weighing. The determination of non-volatile matter is carried out by slow evaporation in a furnace, controlled at (200 10) C, in a flow of nitrogen, of the volatile matter and the sulphur. Weighing of the residue after about 10 h.

Product Details

Published: 10/01/1975 Number of Pages: 2File Size: 1 file , 210 KB