Fire extinguisher CO types have the test information stamped on the cylinder, all other types get a sticker on the back of the cylinder. Once dry, the units are recharged. Unlike the UK, the US does not rebuild extinguishers and replace valves at specific intervals unless parts are found to be defective, with the exception of halon. Halon types are often given new o-rings and valve stems at every internal maintenance to minimize any leakage potential. OEM equipment must be used for replacement parts for the extinguisher to maintain its UL rating. If parts are unavailable, replacement is recommended, keep in mind
Green Fire (novel) then are obliterated. MacRobert, who has previously refused offers from either corporation, is placed in charge of Independent. He disposes of Jevic in time to end the destruction. Basil Davenport, reviewing the novel for "The New York Times", faulted the story's "psychological crudities," but noted that "Green Fire" was also marked by "some striking concepts, and a duel of powers with real suspense." Everett F. Bleiler faulted the novel for defects including "poor exposition," noted that Jevic was modeled on Nikola Tesla, and found the fictionalized account of his early life "fascinating." Green Fire (novel) Green Fire is a science