Certification of Tot Lot chips can be a moving target. The actual requirements can vary time to time and state to state. With that said the widely used and accepted standard is ASTM F2075. Blade Runners always uses chips that meet this standard.
See below the details surrounding this standard.
Composition:Playground Tot Lot Chips are manufactured from recently collected North American Hardwood materials such as Oak, Maple, Hickory, Ash, Birch, Poplar, Beech, and Locust. There are no additives or chemical treatments present in the materials. The entire wood product is free of soil and other contaminants that promote faster decomposition.
Dimensions: Playground Tot Lot chips are random in size, approximately 5-10 times longer
than they are wide. Playground Tot Lot Chips meet the particle size requirements of ASTM 2075.
Media Analysis Report: % of material passing through sieve.
Particle Size Passing
3/4/ inch 100.0
3/8 inch 89.8
Properties: Playground Tot Lot Chips meet the guidelines for
- Heavy Metal, ASTM F 2075
- Tramp Metal, ASTM F 2075
- Impact Attenuation, ASTM F 1292
- Moisture Content
- Moisture Absorption
- Accessibility, ASTM F 1951
- Coefficient of Permeability, ASTM D 2434
- Resistant to Flammability, 16 FR Part 1630 Standard for Surface Flammability for Carpets or Rugs