Fire extinguisher class D fire extinguisher agents available; some will handle multiple types of metals, others will not. TMB was used experimentally by the US Air Force, specifically with regard to B-52 engine assemblies, and was tested in modified 10-gallon wheeled CBM extinguishers. Other agents were added to suppress the methanol flare up, such as chlorobromomethane (CBM), Halon 2402, and Halon 1211, with varied success. Halon 1211 was the most successful, and the combined TMB pressurized with halon 1211 and nitrogen was called Boralon was used experimentally by the Los Alamos National Laboratory for use on atomic metals, using sealed cylinder extinguishers
Chubb Fire The combined expertise of Pyrene, Minimax and Read and Campbell have contributed to today's production techniques and have simplified designs resulting in the modern extinguisher which is lighter in weight, easier to handle and of greater efficiency than before. Seize & Squeeze 1975 In 1975, Chubb Fire launched their new range of extinguishers under the banner 'Seize and Squeeze'! These extinguishers, fitted with a new style of head, enabled them to be operated by simply withdrawing a pin and squeezing a lever, no matter which type of extinguisher in the Chubb range was being used. Previously, different operating methods were