标准号:IS 6212-1971
发布日期:1972/8/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:1.1 This standard prescribes a method of test for the determination of residual thiosulphate in processed black and white photographic films and plates.1.1.1 This method is unsuitable for estimation of residual thiosulphate in processed black and white photographic paper.