B class self closing sliding fire door

Shipboard fire control plan signs; B-class sliding self-closing fire door.

Conforms to IMO resolution A.952(23) and ISO 17631 as recognised by A.11160(30) which comes into force on or after 1st January 2019.

IMO 952(23) -1.11 ISO 17631-A.1.11
IMPA Code 33.6775
ISSA Code 47.567.75