Specification for coal tar pitches for building purposes
standard by BSI Group, 09/15/1965
Classification, coding and marking of covered electrodes for metal-arc welding
standard by BSI Group, 07/22/1963
Flame proof air-break circuit breakers for voltages not exceeding 660 volts
standard by BSI Group, 01/30/1933
Electrical protection relays. Information and requirements for all protection relays. Specification for electrical disturbance tests-Fast transient disturbance test
standard by BSI Group, 02/15/1993
Methods for analysis and testing of coal and coke. Tests special to coke-Determination of shatter indices
standard by BSI Group, 01/31/1992