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 for tackling cooking oil fires, and the Pyromet™ extinguisher for fighting Class D metal fires. Each product is available with ancillary equipment including stands, mobile trolleys, and internal/external covers. Chubb Fire Chubb Fire & Security is a fire and security business. It is owned by United Technologies Corporation. Read and Campbell, the oldest company of those which came together to form Chubb Fire Security Limited. Their invention of the CO2 Cartridge to expel the contents of a fire extinguisher is still today the most common method in use. Read and Campbell are mainly remembered for their 'Waterloo' and 'Petrolex' brand