Hot Tub and Spa
Term Definitions
ASTM
The definition of ASTM is:
American Society for Testing and Materials. A standards development organization that serves as an open forum for the development of international standards. ASTM # F 1346-91 is the ASTM Standard for Manual Safety Covers. Covers that meet the ASTM standards bear the ASTM logo, which assures consumers that the cover not only retains heat, but also guarantees its use as a safety cover. Visit www.astm.com for more information.
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