photographic fixing

photographic fixing

[¦fōd·ə¦graf·ik ′fiks·iŋ]
(graphic arts)
The process by which the unexposed and unreduced silver halide in a negative is removed in an exposed film; sodium thiosulfate (hypo) is the chemical usually used.
References in periodicals archive ?
The workers at the North Staffordshire Royal Infirmary in Stoke-on-Trent were left with breathing difficulties after the leak of 25 litres of photographic fixing fluid in the mammography department.

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