I have the original article BJP Mar 27 1996 in which Crawley first published the formula for FX-37 and can confirm that the formula given in APUG's Articles section is correct:

http://www.apug.org/forums/forum223/...lta-films.html
Elsewhere the formula is given with 69g sulfite ,which may have originated as a typo, and in the Film Developing Cookbook the formula is also wrong, having a large excess of benzotriazole.

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