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在电影胶片加工过程中,最后水洗的质量,取决于胶片中残余硫代硫酸钠的含量。苏联的一些电影洗印厂,按全苏标准 OCT19-66-76的规定,用碘量滴定法测定加工后胶片中的硫代硫酸钠残余量。这种方法是用蒸馏水从胶片中萃取硫代硫酸钠,然后用带
The quality of the final wash during motion picture film depends on the amount of residual sodium thiosulfate in the film. Some Soviet film printing and dyeing factory, according to the provisions of the Soviet Union standard OCT19-66-76 iodized titration method for the determination of residual sodium thiosulfate film. This method uses distilled water to extract sodium thiosulfate from the film and then tape it