1 powerboats 26 feet long but less than 40 feet long must carry at least two B-1 fire extinguishers or the equivalent, such as a B-2 fire extinguisher; 2  powerboats 40 feet long but less than 65 feet long must carry at least three B-1 fire extinguishers or the equivalent, such as one B-1 and one B-2 fire extinguisher.
Rather, the core is made up of a non-toxic mineral called graphite. The common name âpencil leadâ is due to an historic association with the stylus made of lead in ancient Roman times. If youâre looking for information on potential lead exposure risks in pencils, Click here.
The formation of graphitelike material from organic compounds. the formation (deposition) of graphite in iron, nickel, cobalt, and other metal alloys in which carbon is contained in the form of unstable chemical compounds, carbides. At high temperatures the carbide is completely replaced by graphite.