Above illustration: Reprinted with permission from NFPA 10 - 1998, Portable Fire Extinguishers, Copyright © 1998, National Fire Protection Association, Quincy, Massachusetts 02269.
Ülaloleva pildi kordustrükiks loa andnud NFPA 10 – 1998, Portable Fire Extinguishers, Copyright © 1998, National Fire Protection Association, Quincy, Massachusetts 02 269.