What ASTM certification means for your pool safety cover and why it matters for your family's protection.
ASTM F1346-91 is the safety performance specification for covers for swimming pools, spas, and hot tubs, and it is the gold standard by which all genuine safety covers are measured. This certification is not decorative — it represents rigorous testing designed to save lives, particularly those of young children who are most vulnerable to accidental drowning.
The standard requires covers to support the weight of two adults and one child — a combined 485 pounds — without collapsing into the pool. Covers must prevent gaps larger than 4 inches anywhere along their surface, eliminating spaces where a small child could slip under. They must be removable by one adult without tools, ensuring emergency access is always possible.
All Covertech safety covers meet or exceed this standard, undergoing third-party testing to verify compliance independently. This verification matters because some covers on the market make safety claims without proper certification. When you see ASTM F1346-91 certification, you know the cover has been genuinely tested — not just marketed — as a life-saving device.
Our covers are also tested for tensile strength, tear resistance, and anchor pull-out force. The anchors must resist substantial lateral force without pulling free from the deck, ensuring the cover cannot be lifted or displaced by wind, debris, or accidental contact. These mechanical requirements ensure the cover functions as intended throughout the entire winter season.
Beyond the certification itself, proper installation is equally critical to safety performance. An ASTM-certified cover installed incorrectly — with improper anchor spacing, insufficient tension, or incorrect fit — may not perform to its rated safety specifications. This is why Covertech strongly recommends professional installation and provides detailed measuring forms and installation documentation for every order.