This International Standard establishes criteria for the purity of photographic-grade sodium hydroxide (DANGER: <>) and specifies the tests to be used to determine the purity.
note:1) Hazard warning codes are defined in ISO 10349-1:1992, clause 4.
BS ISO 3617:1994 history
0000 BS ISO 3617:1994(1999)
1995BS ISO 3617:1995 Photography. Processing chemicals. Specifications for sodium hydroxide
1995BS ISO 3617:1994 Photography - Processing chemicals - Specifications for sodium hydroxide