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根据《GB 3323-82》标准2.14条关于底片质量的规定:底片必须能明显观察出2.6条规定的标志,在有效评片范围内不应有药膜脱落、划痕、指纹等伪缺陷。为了消除底片上的指纹等伪缺陷,确保标准顺利的执行实施,推荐下述几种方法,供大家参考试用。 1.底片上指蚊的消除配制一种简易的硫代硫酸钠溶液,其配方如下: 水(温水)约52℃ 1000毫升硫代硫酸钠 50克配制好后,存放24小时后使用。处理方法:先将有指纹的底片放入清水中漂洗约5～10分钟,尔后放入硫代硫酸钠溶液中浸泡约30分
According to “GB 3323-82” standard 2.14 on film quality requirements: negative film must be able to clearly observe the provisions of Article 2.6, in the effective evaluation of the film should not fall off, scratches, fingerprints and other fake defects. In order to eliminate fake defects such as fingerprints on the film to ensure the smooth implementation of standards, the following methods are recommended for your reference trial. 1. Negative film on the mosquito elimination Preparation A simple sodium thiosulfate solution, the formula is as follows: water (warm water) about 52 ℃ 1000 ml Sodium thiosulfate 50 g formulated, stored for 24 hours before use. Approach: First fingerprint film into the rinse water rinse for about 5 to 10 minutes, then into the sodium thiosulfate solution for about 30 minutes