To support the implementation of the ZDHC Wastewater and Sludge Guidelines in the value chain and to ensure a consistent level of data quality, ZDHC has established the ZDHC Laboratory and Certifier Approval Programme.

Only ZDHC Approved Wastewater Laboratories, that have been approved to test against the ZDHC Wastewater and Sludge Guidelines, can; perform sampling, testing, and report results into the ZDHC Gateway. These laboratories must strictly follow both “the ZDHC Wastewater and Sludge Guidelines” and “the ZDHC Wastewater and Sludge Laboratory Sampling and Analysis Plan (SAP)”, which provides a detailed framework for laboratories to determine the concentration of parameters in wastewater and sludge.

Please click this link to find ZDHC Approved Wastewater Laboratories in your region.