Recreational Water Product Testing & Certification Program
As a world leader in testing and certification for recreational water products, NSF International was the first to publish an American National Standard to address the health effects of pool and spa treatment chemicals.
This addition to longtime industry standard NSF/ANSI 50: Equipment for Pools, Spas, Hot Tubs and Other Recreational Water Facilities addresses the risk and toxicity of pool chemicals. The standard now provides criteria for testing for trace contaminants in chemicals, which are used in the treatment and circulation systems of swimming pools, spas and water parks.
The scope of this addition to NSF/ANSI 50 includes criteria for the evaluation of pool and spa treatment chemicals for the effects of dermal contact, inhalation and ingestion exposures.
Prior to the development of NSF/ANSI 50 Annex R (Toxicology Review and Evaluation Procedures for Swimming Pool Treatment Chemicals), there was no universally recognized protocol for the evaluation of pool chemicals. In many areas, product certification to NSF/ANSI/CAN 60: Drinking Water Treatment Chemicals - Health Effects is currently used as a requirement for regulatory acceptance of chemicals used in pool/spa water treatment. However, although NSF/ANSI/CAN 60 addresses oral exposure (of water treated with an NSF/ANSI/CAN 60 compliant chemical), it does not address dermal or inhalation exposure to treatment chemicals. Instead, these parameters are now included under NSF/ANSI 50 Annex R for pool chemicals.
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