Leather — Chemical determination of chromium(VI) content in leather — Part 1: Colorimetric method
皮革 - 皮革中铬(VI)含量的化学测定 - 第1部分:比色法
发布日期:
2017-02-02
ISO 17075-1:2017规定了在规定条件下测定皮革浸出溶液中铬(VI)的方法。所述方法适用于将皮革中的铬(VI)含量定量至3 mg/kg。
ISO 17075-1:2017适用于所有皮革类型。
从该方法获得的结果严格取决于提取条件。使用其他提取程序(提取溶液、pH值、提取时间等)获得的结果与本文件所述程序产生的结果不可比。
如果皮革样品同时使用本文件和ISO 17075-2进行测试,则使用ISO 17075-2获得的结果将被视为参考。ISO 17075-2中所述方法的优点是提取物的颜色不会产生干扰。然而,实验室间试验并未显示出显著差异(见附录C),两种方法的结果具有可比性。
ISO 17075-1:2017 specifies a method for determining chromium(VI) in solutions leached from leather under defined conditions. The method described is suitable to quantify the chromium(VI) content in leathers down to 3 mg/kg.
ISO 17075-1:2017 is applicable to all leather types.
The results obtained from this method are strictly dependent on the extraction conditions. Results obtained by using other extraction procedures (extraction solution, pH, extraction time, etc.) are not comparable with the results produced by the procedure described in this document.
If a leather sample is tested with both this document and ISO 17075-2, the results obtained with ISO 17075-2 are considered as the reference. The advantage of the method described in ISO 17075-2 is that there are no interferences from the colour of the extract. Nevertheless, interlaboratory trials do not show significant differences (see Annex C) and the results are comparable between both methods.