标准摘要
[中文适用范围]： GB/T 20432的本部分规定了照相级化学品硫化物测定的通用试验方法。 [外文原描述]： The method is based on weighing a test portion, dissolution in water, transfer to one of the Nessler colour-comparison cylinders, pipetting the volume of sulfide standard into the second Nessler colour-comparison cylinder, addition of alkaline lead solution, making up with water, mixing thoroughly, and comparing the colour and clarity of the two solutions.
英文名称Photography — Photographic-grade chemicals — Test methods — Part 10: Determination of sulfide content