Methods of testing plastics. Optical and colour properties, weathering-Methods of exposure to natural weathering
standard by BSI Group, 08/31/1981
Specification for limiting dimensions of air filters for internal combustion engines and compressors other than for aircraft
standard by BSI Group, 12/13/1956
Auxliaries for operation of fluorescent lamps on a.c. 50 c/s supplies. Ballasts
standard by BSI Group, 09/28/1962
Machine tapers. Self holding tapers annd gauges for self holding tapers
standard by BSI Group, 09/11/1950
Specification for hot binder distributors for road surface dressing
standard by BSI Group, 12/10/1959