Methods for measurement of air pollution-Determination of mass concentration of sulphur dioxide in ambient air: Thorin spectrophotometric method
standard by BSI Group, 01/31/1983
Sampling and analysis of vegetable tanned and chrome tanned leathers.
standard by BSI Group, 05/28/1946
Methods for the analysis of steel . Aluminium in permanent magnet alloys
standard by BSI Group, 02/09/1948
Methods for analysis and testing of coal and coke-Determination of the index of abrasion of coal
standard by BSI Group, 10/31/1980