Division 3.2
United Kingdom
Development solvent: petroleum ether (40-60)/benzene/acetone/ammonium hydroxide solution (minimum 25 % NH3): 35/35/35/1 (v/v/v/v).
United Kingdom
Development solvent: petroleum ether (40-60)/benzene/acetone/ammonium hydroxide solution (minimum 25 % NH3): 35/35/35/1 (v/v/v/v).