Air-break knife switches and air-break isolating switches for voltages not exceeding 660 volts excluding totally-enclosed and flame proof types
standard by BSI Group, 01/30/1933

Methods for analysis and testing of coal and coke-Proximate analysis-Determination of moisture content of the general analysis sample of coal
standard by BSI Group, 04/30/1991

Universal Decimal Classification. English full edition-Plastic or chipless working, forming and treatment of materials
standard by BSI Group, 06/30/1977

Methods for analysis and testing of coal and coke. Tests special to coke
standard by BSI Group, 11/17/1970

Specification for water-tube steam generating plant (including superheaters, reheaters and steel tube economisers)
standard by BSI Group, 02/28/1978

Office organization and practice
standard by BSI Group, 12/01/1943

Timber ladders, steps and trestles
standard by BSI Group, 02/22/1960

Specification for sizes of photographic black-and-white papers for general use
standard by BSI Group, 06/29/1972

Methods for the analysis of iron and steel. Manganese in ferro manganese and related alloys Volumetric
standard by BSI Group, 03/02/1966

Flat bottom railway rails
standard by BSI Group, 01/01/1921

Cold twisted steel bars for concrete reinforcement
standard by BSI Group, 11/15/1943

Methods for analysis and testing of coal and coke-Determination of abrasion index of coal
standard by BSI Group, 08/31/1990