BS 731-1 52nd Edition, October 2, 1952
Flexible Steel Conduit for Cable Protection and Flexible Steel Tubing to Enclose Flexible Drives Part 1: Flexible Steel Conduit and Adaptors for the Protection of Electric Cable
Includes all amendments and changes through Reaffirmation Notice , March 15, 1993
Additional Comments: W/D S/S BY BS EN 50086-1
Published By:British Standards Institution (BSI)
Mechanical requirements, dimensions, materials and tests for three types of conduit (unpacked, asbestos packed, and rubber packed), and design and materials for two types of adaptors (clamp type and solid type).