Description
Shipboard fire control plan signs; Space or group of spaces protected by a gas other than CO2 fire-extinguishing system. The symbol is accompanied by the name of the gas, or as in this case the letter N for Nitrogen
Conforms to ISO Standard 244409: 2014
ISO SIS042 or ISO 17631-A.2.32
IMPA Code 33.6877
ISSA Code 47.568.77