In order to improve the hygienic quality of purified water for drinking and provide guidance for practical production, the influencing factors on the overrun microbiological indexes in purified water before leaving the factory are analyzed,and corresponding countermeasures are put forward in combination with the practical production.

This plan discusses how tap water reaches the technical idex for purified drinking water and is piped into the different families after being retreated.

On methods of minimizing hazard of 18.9 L bottled purified water for drinking;

Control on quantity of microorganisms in production of bottled purified water for drinking;