New edition of NSF/ANSI 50 evaluates the risk and toxicity of pool chemicals and also requires testing for trace contaminants
Global public health organization NSF Intl. has published the first American National Standard to address the health effects of pool and spa treatment chemicals. The new edition of NSF/ANSI 50: Equipment for Pools, Spas, Hot Tubs and Other Recreational Water Facilities, evaluates the risk and toxicity of pool chemicals and also requires testing for trace contaminants in chemicals which are used in the treatment and circulation systems of swimming pools, spas and water parks.
The U.S. Environmental Protection Agency’s (EPA) Office of Pesticides evaluates and registers pool and spa disinfectants, algaecides and other biocides, but does not include other categories of chemicals such as sequestering chemicals, water chemistry balancing agents and filtration aids. Until now, no formal certification program has been in place to address the health effects of these products.
The new edition of the NSF/ANSI 50 standard sets criteria for the evaluation and risk assessment of pool and spa treatment chemicals including the effects of dermal contact, inhalation and ingestion exposures.
“In the absence of a public pool chemical standard, Florida has required these products to meet NSF/ANSI 60: Drinking Water Treatment Chemicals – Health Effects,” said Bob Vincent, environmental administrator for the Florida Department of Public Health. “Now the new edition of NSF/ANSI 50 fills that void with a more appropriate standard for these public pool and spa treatment chemicals.”
NSF/ANSI 50 specifies the testing requirements for virtually every product used at a recreational water facility. NSF International developed NSF/ANSI 50 through a consensus process with balanced input from the regulatory, industry, academic and consumer communities. The NSF/ANSI 50 standard continues to evolve to incorporate the latest product and material test methods and regulations, and is required by most U.S. states.