最新国际标准摘报编者按：为了配合企业采用国际标准，加速标准制、修订速度，提高标准技术水平，现将一些国际标准的内容陆续、摘要加以介绍，以供有关单位采标使用。若需要标准中译文，可与作者联系。ＩＳＯ４１８─１９９４摄影术　加工用化学品　无水亚硫酸钠规格本标... According to the latest International Standards Digest Editor’s Note: In line with the adoption of international standards for enterprises, speed up the standard system, modify the speed and improve the standard technical level, the contents of some of the international standards are introduced one after another, abstracts to be introduced for use by the relevant units. If you need standard Chinese translation, you can contact the author. ISO418─1994 photographic processing chemicals anhydrous sodium sulfite specifications ...