Chromium
Specimen preparation
Spectrophotometry
Extraction methods of analysis
Leaching
Chromates
Chromium inorganic compounds
Determination of content
Chemical analysis and testing
Leather
Link: BS ISO 10195:2018 Leather. Chemical determination of chromium(VI) content in leather. Thermal pre-ageing of leather and determination of hexavalent chromium Part 3: Thermal pre-ageing of leather and determination of hexavalent chromium
Source: BSI Standards