The American National Standards for health effects of drinking water treatment chemicals (NSF/ANSI 60) and plumbing system components (NSF/ANSI 61) have been updated for the Canadian market and published as National Standards of Canada. The standards, initially published in 1988, have been renamed NSF/ANSI/CAN 60: 2018 Drinking Water Treatment Chemicals - Health Effects and NSF/ANSI/CAN 61: 2018 Drinking Water System Components - Health Effects.
NSF Intl. has facilitated the development of the voluntary, consensus standards by a balanced committee of stakeholders representing both U.S. and Canadian public health officials, regulators, industry, product certifiers and various user groups.
The previously published versions of the standards have been recognized in Canada for years, where nine of 13 provinces/territories in Canada currently require drinking water treatment chemicals to comply with the requirements of NSF/ANSI 60. According to NSF Intl., 11 of 13 provinces/territories require drinking water system components to comply with the requirements of NSF/ANSI 61.
“These standards have been in use in the U.S. and parts of Canada as NSF/ANSI standards since 1988, and they have been instrumental in helping to reduce drinking water contaminants at the consumer’s tap,” said Jessica Evans, director of standards at NSF Intl.
NSF Intl. also has published a companion standard, NSF/ANSI/CAN 600: 2018 Health Effects Evaluation and Criteria for Chemicals in Drinking Water, which defines the toxicology review procedures for evaluating specific chemicals or contaminants in drinking water resulting from the use of treatment chemicals and water distribution system components. According to NSF International, the standard evaluates the potential human health risk of contaminants that may be imparted into drinking water under anticipated use conditions.
“The health risk assessment information in NSF/ANSI/CAN 600 was previously available as Annex A of standards 60 and 61,” Evans said. “By publishing it as a companion standard, we expect there will be an increase in the availability of toxicology data.”
According to NSF Intl., anyone obtaining a copy of NSF/ANSI/CAN 60 or NSF/ANSI/CAN 61 will also receive a complimentary copy of NSF/ANSI/CAN 600.