Guide to the ADA Standards

What is the minimum level of slip resistance required by the standards?

The standards require ground and floor surfaces to be slip resistant, but they do not specify a minimum level of slip resistance or coefficient of friction.  This value varies according to the measurement method and protocols used.  Some products are labeled with a rated level, but in the absence of a consensus test procedure, the standards do not set a minimum value.  Standard methods to prevent or minimize slipperiness in the specification of floor materials, textures, applications, and finishes may be sufficient for compliance with the standards.