- NSF International has published NSF/ANSI 244 (2018) for Drinking Water Treatment Units – Supplemental Microbiological Water Treatment Systems – Filtration: The POU and POE systems addressed by this standard are designed to be used for the supplemental microbial control of specific organisms that may be introduced in drinking water (public or private) because of intermittent incursions.
- IAPMO has published IAPMO/ANSI Z 601 (2018) for scale reduction devices: This standard covers scale reduction devices intended for residential and similar water heating applications and specifies general, material, structural integrity and testing requirements.
