ANSI/APSP-11 2019 Standard for Water Quality in Public Pools and Spas (PDF)
This standard is as a revision of ANSI/APSP-11 2009 and is based on health-related scientific information. The objective of this voluntary standard is to provide recommended minimum guidelines for the specifications for water quality parameters in public pools and spas. It is intended to meet the need for incorporation into national or regional health codes, and also for adoption by state and/or local municipalities as a local code or ordinance. This is the downloadable PDF version. A printed version is also available in the APSP Store.
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