Comply with WSD New Commissioning Requirements for New Plumbing Works by Our Comprehensive Drinking Water Analysis

According to the WSD Circular Letter No. 9/2017 about New Commissioning Requirements for New Plumbing Works, all on or after 15 October 2017, The building contractor/LP is required to carry out systematic flushing on the newly constructed potable water inside services as required under WSD Circular Letter No. 6/2017. Afterwards, the water in the inside service is allowed to stagnant for 6 hours for collecting 6HS water samples for water sampling tests.

Details of the 6HS water sampling tests are as follows:

CMA Testing can offer you one-stop solution for water analysis under WSD’s latest regulation. We are accredited by Hong Kong Accreditation Service (HKAS) for drinking water tests under the Hong Kong Laboratory Accreditation Scheme (HOKLAS) (Details: For details, please feel free to contact us.