We have been collaborating with the ZDHC group since its foundation by providing colorants-specific input on the Manufacturer Restricted Substances List (MRSL) as well as general advice on existing certification systems.
Among other things, we also specially promoted the use of responsible care and product stewardship programs as indicators of reliable chemical manufacturers. Additionally, we published two references for down-stream users: "ETAD trace metal limits for dyes used in textile applications" and "ETAD recommended trace metal limits for organic pigments used in textile applications".
Our activities in further detail: