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|^used plastics makers of keeping Formation from the public about the ÛÏextreme dangerÛ plastics pose during a fire.</br></br>The International Association of Fire Fighters said that the plastics , industry has tried to block a union 7 Û¢film.for television about the toxicity of PVCÛÓpolyvinyl chlorideÛÓin a</br></br>The'Vinion film indicting plastics, " FiowdyOr, was produced and mostly '"funded''by Atcor Inc., which man-*' ufactures a competing productÛÓ Û¢"metal conduit and pipe. The Har-ÛÓvey, 111., company gave between $30,000 and $50,000 to the firefighters union to produce the film, ÛÏThe plastics industry doesn't want this film shown because they don't want you to know the truth about some	products	which	are</br></br>, very dangerous," said John A. Gan-[ non, president of the International ; Association of Fire Fighters. ÛÏIn a ; fire, it takes only a small amount of PVC to give off toxic gases that can '. kill everyone inside an average ho-! tel room in 10 to 15 minutes.Û ! showing and has pressured televi-, sion stations to stop its airing, the J union said. The film, ÛÏThe Burning | Issue,Û covers hazards of fumes ;	from plastics	and their	part in	the</br></br>I to investigate the film as anti-I competitive, said yesterday that the ! union film was misleading and de-| ceptive partly because it was pro-j duced by the metal-pipe maker in < an attempt to persuade viewers to ÐÊ oppose use of plastic materials in ! building construction. Û¢	vated because one of the sponsors 1 is a producer of competing material, i They have used the film to place ; arbitrary restriction on the plastics