This standard was formulated and released by Changde Housekeeping Service Industry Association and Changde Quality Association, and stipulates the implementation requirements for the prevention and control of the new coronavirus pneumonia epidemic in Changde City's housekeeping service industry. This standard helps guide domestic service units to carry out prevention and control management of domestic service-related places, facilities and employees during the epidemic prevention and control period to ensure that the epidemic is effectively prevented and controlled.
T/CDZX 003-2020 history
2023T/CDZX 003-2023 Determination of phosphatidylcholine in milk powder—HPLC method