Fire extinguisher had been developed by DuPont and the US Army in 1954. Both 1211 and 1301 work by inhibiting the chain reaction of the fire, and in the case of Halon 1211, cooling class A fuels as well. Halon is still in use today but is falling out of favor for many uses due to its environmental impact. Europe and Australia have severely restricted its use, since the Montreal Protocol of 1987. Less severe restrictions have been implemented in the United States, the Middle East, and Asia. Internationally there are several accepted classification methods for hand-held fire extinguisher. Each classification is
The Green Green Grass reluctant to let him in her house and is always making uncalled for comments towards him. He became more tolerant of her as the series progressed. In an "Only Fools and Horses" episode, Dora wouldn’t allow Boycie to stay with her when his gas effect log fire gases them out thus he has to stay with Del Boy. Guest actors were brought into "The Green Green Grass" on an infrequent basis however, there were a few guests stars over the thirty-two episodes of the sitcom. The first guest star was in the very first episode, "Keep on Running" which saw