BS ISO 10348-1993 摄影技术.冲洗废液.银含量测定

标准号：BS ISO 10348-1993
中文标准名称：摄影技术.冲洗废液.银含量测定
英文标准名称：Photography - Processing wastes - Determination of silver content
标准类型：G84
发布日期：1996/1/15 12:00:00
实施日期：1996/1/15 12:00:00
中国标准分类号：G84
国际标准分类号：13.030.20;13.060.30;13.060.50;37.040.30
适用范围：This International Standard gives methods for deter-mining the silver content in photographic effluents from photographic processing wastes. Sampling, sample preservation and analytical methodology are included. Three analytical procedures are given with two sup-porting sample treatment methodologies: a) a flame atomic absorption spectroscopy (AAS) method; b) two potentiometric iodide titration (PT) methods. The choice of treatment is dependent on the analysis method and form of sample. Where AAS is the cho-sen method for analysis, cyanogen iodide-treated or preserved samples may be analysed directly. For the PT method, two digestion procedures are given: Di-gestion A for effluents with low salt content, and Di-gestion B for samples with high solids content.