IAPMO IGC 159-2019涵盖零废水反渗透系统和零废水改造套件，以适应现有的反渗透系统，旨在节约水处理设备排放周期中通常浪费的水，并规定了材料、物理特性、性能测试和标记的要求。

IAPMO IGC 159-2019 covers zero waste water reverse osmosis systems and zero waste retrofit kits to adapt to existing reverse osmosis systems intended to conserve water which is normally wasted during the discharge cycle of the water treatment appliance and specifies requirements for materials, physical characteristics, performance testing, and markings.