BS EN ISO 17075-2:2017 pdf.Leather - Chemical Determination Of Chromium(VI) Content In Leather - Part2:Chromatographic Method. BS EN ISO 17075-2 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. BS EN ISO 17075-2 is applicable to all leather types....