本文件描述了皮革水溶液中铬的测定方法。这是对皮革中总铬的分析；它不是特定于化合物或特定于其氧化状态。 本方法描述了通过碘量滴定法测定铬，适用于铬鞣革，其氧化铬含量预计超过0.3%。两种不同的方法被描述为在合适的溶液中获得铬的替代方法。 这两种方法都适用。

This document describes a method for the determination of chromium in aqueous solution obtained from leather. This is an analysis for total chromium in leather; it is not compound specific or specific to its oxidation state. This method describes the determination of chrome by iodometric titration and is to be applicable to chromium-tanned leathers which are expected to have chromic oxide contents in excess of 0,3 %. Two different methods are described as alternatives for obtaining chromium in a suitable solution. It is appropriate to use either method.