GroundSmart™ Playground Rubber Mulch – Installation Instructions GroundSmart™ Playground Rubber Mulch – Architectural Bid Specifications GroundSmart™ Rubber Mulch – IPEMA Certification for 4”, 5” and 6” compacted depths per ASTM F1292-13 GroundSmart™ Rubber Mulch – IPEMA Certification for F3012 GroundSmart™ Rubber Mulch – ASTM F1951-99 Wheelchair Accessibility Test at 4” compacted depth GroundSmart™ Rubber Mulch – ASTM F1951-99 Wheelchair Accessibility Test [...]