ASTM F1292

ASTM F1292 specifies the maximum acceleration (Gmax) and Head Injury Criterion (HIC) values that a surface must meet at a given drop height to be classified as fall-protective. While playgrounds use it for swing-set rubber tile, the same physics governs indoor play surfaces.

A 12 mm (0.5″) or 25 mm (1″) depending on tier PopsyKosy mat clears the ASTM F1292 threshold for a critical fall height of approximately 30 inches — the bar appropriate for crawling, cruising, and early-walking children.