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Photography — Processing chemicals — Specifications for hydroquinone
90.93 Standard confirmed
Photography — Processing chemicals — Specifications for anhydrous sodium carbonate and sodium carbonate monohydrate
90.93 Standard confirmed
Photography — Pre-packaged chemicals for the processing of silver halide based photographic materials — Vocabulary
90.93 Standard confirmed
Photography — Processing chemicals — Specifications for potassium sulfite, 650 g/l solution
90.93 Standard confirmed
Photography — Processing waste — Determination of total amino nitrogen (microdiffusion Kjeldahl method)
90.93 Standard confirmed
Photography — Processing waste — Determination of ammoniacal nitrogen (microdiffusion method)
90.93 Standard confirmed
Photography — Processing waste — Determination of hydroquinone
90.93 Standard confirmed
Processing photographic wastes — Analysis of cyanides — Determination of hexacyanoferrate (II) and hexacyanoferrate (III) by spectrometry
90.93 Standard confirmed
