BS

13 A plugs, socket-outlets, adaptors and connection units
standard by BSI Group, 02/27/2018

13 A plugs, socket-outlets and adaptors. Specification for adaptors
standard by BSI Group, 02/28/1989

13 A plugs, socket-outlets, adaptors and connection units. Specification for 13 A fused connection units switched and unswitched
standard by BSI Group, 11/15/1995

13 A plugs, socket-outlets, adaptors and connection units
standard by BSI Group, 06/07/2019