NSF International, an independent global organization that writes standards, and tests and certifies products, has published the first in a series of American National Standards for Ground-Source Geothermal Piping Systems – NSF/ANSI 358-1. This new standard, which will be referenced in the 2015 International Mechanical Code, provides assurance that certified geothermal products meet minimum performance and safety requirements, reducing potential liability, and increasing confidence and product acceptance in the marketplace.
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