Made in accordance with the ASTM F1346-91 Standard for Manual Safety Covers, all Ideal™ Spa Covers follow ASTM performance test requirements as classified by (UL) Underwriters Laboratories.
ASTM Performance Requirements
Static Load: For spas with a width or diameter greater than 8' from the periphery, the cover shall be able to hold a weight of 485 pounds to permit a rescue operation. For spas with a width or diameter less than or equal to 8', the cover shall withstand the weight of 275 pounds.
Perimeter Deflection: The spa covers are designed that when they are tested, deflection of the cover does not allow the test object to pass between the spa cover and the side of the spa, or to gain access to the water.
Additional Requirements: Special labeling, fastening (locking down), surface drainage and conformance on literature and notifications standards.
