Mar 23, 2012

Joint NSF-Japan Protocol Developed to Certify Systems for Iodine Reduction

Protocol was developed in response to last year’s nuclear disaster in Japan

Protocol was developed in response to last year’s nuclear disaster in Japan

NSF Intl. and the Japan Water Purification Assn. (JWPA) are completing a jointly developed protocol to evaluate the ability of certain water filtration products to reduce iodine, including radioactive iodine, from drinking water. Once the protocol is complete, manufacturers can have their activated carbon, ion exchange and reverse osmosis water filtration technologies tested and certified to ensure effective iodine reduction. The program was announced at the WQA Aquatech USA 2012 show in Las Vegas earlier this month.

NSF and JWPA began developing the protocol at the request of water treatment systems manufacturers following the earthquake in Japan in March 2011 to help solve consumer confusion and provide a means to evaluate systems that reduce radioactive iodine. Manufacturers felt use of water systems certified to the protocol would provide consumers additional reassurance. The international protocol will be known as NSF/JWPA Protocol P72 Drinking Water Treatment Units – Iodine Radioisotope Reduction.

NSF utilized its global water technology expertise to help develop the new NSF/JWPA Protocol P72. In creating the protocol, a team of NSF scientists, JWPA technical committee members and other experts developed test methods used to evaluate whether adsorptive and absorptive media, such as activated carbon, as well as reverse osmosis and ion exchange point-of-use water filtration technologies, can effectively reduce iodine from water.

Once the protocol is complete, manufacturers will be able to have their products tested and certified by NSF to ensure they effectively reduce iodine and help protect consumers.

Additionally, to be a truly international protocol that can be applied to many regions of the world, the NSF/JWPA Protocol P72 requires that the system meet appropriate drinking water treatment country standards. For example, for the U.S. market, the system also must meet the requirements of NSF/ANSI standard 42, 53 or 58. In Japan, the requirements of the Japanese Industrial Standard (JIS) 3201: Testing Methods for Household Water Purifiers also must be met.