Water/Spray Park, Pool and Spa Industry Update 2014: NSF/ANSI Standard 50 Water Quality Test Devices, Chemicals & Materials

摘要

Still waters run deep and rolling stones gather no moss (but do play rock concerts). In the pool and spa industry, NSF/ANSI Standard 50 certification is the measure of quality products as evidenced by the many states and codes that require the use of certified equipment in the design, construction and operation of pools and spas in North America. NSF/ANSI 50, covering pool and spa product testing, has been in existence for over 50 years. Over the decades, this standard has grown to include more breadth and depth. Although the 'Stones' may be rolling a bit more slowly these days, NSF/ANSI 50 has picked up steam, adding more and more product categories, detailed requirements and companies tested/certified to the criteria than ever before. There are now requirements for virtually every product used at recreational water facilities. There are over 30 different types of pool, spa and waterpark products in NSF/ANSI 50 per Table 1. Because there are so many different topics and only a few words in this article, I will focus on two of the newer categories of product addressed within NSF/ANSI 50: 1) water quality test devices and 2) chemicals and materials.