British Standards Document
BS 6724
Electric cables. Thermosetting insulated, armoured cables of rated voltages of 600/1 000 V and 1 900/3 300 V for fixed installations, having low emission of smoke and corrosive gases when affected by fire. Specification

https://doi.org/10.3403/30301444U

BS 6724 is maintained by GEL/20. The current release of this standard is:

BS 6724:2016 Electric cables. Thermosetting insulated, armoured cables of rated voltages of 600/1 000 V and 1 900/3 300 V for fixed installations, having low emission of smoke and corrosive gases when affected by fire. Specification

https://doi.org/10.3403/30301444 (published 30/04/2016)

This standard is available from the following sources:

Other historical versions of this standard document also exist:

BS 6724:1997+A3:2008 [current until 30/03/2017]
BS 6724:1990 [current until 15/09/1997]
BS 6724:1986 [current until 30/11/1990]