This specification covers test methods and performance requirements for loose-fill rubber playground-surfacing products and is intended to complement existing ASTM International standards for determining the shock attenuation and accessibility of a playground surface. The objective of this specification is to assist playground designers and specifiers, owner/operators, and playground-surfacing suppliers in evaluating loose-fill rubber products for playground use. The test methods and performance requirements cover particle size distribution, extractable hazardous metal content, total lead content, tramp metal content, and sharp tramp metal content. It does not address the accessibility of loose-fill rubber playground surfacing, or the release of organic chemicals from loose-fill rubber intended to be used as a playground surface. Included are tables that designate a sample of loose-fill rubber in the form of nuggets; a sample of loose-fill rubber in form of buffings tested; maximum allowable soluble concentration in mg/L; and analytical correction for antimony, arsenic, barium, cadmium, chromium, lead, mercury, and selenium.