Code of practice for planning of electric wiring installations, lowand medium voltage
standard by BSI Group, 07/01/1942
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 the analysis of iron and steel. Manganese in iron and steel Volumetric
standard by BSI Group, 06/23/1966
Printers and authors proof corrections (extracted from BS 1219:1945)
standard by BSI Group, 06/06/1945