8德国标准化学会.DIN51097-1992.Testing of floor coverings determination of anti- slip properties wet--loaded barefooI areas. Walking method-- ramp test, 1992-- 11.
9德国标准化学会.DIN51130-2004.Testing of floor coverings--determination of the anti--slip properties--workro- oms and fields of activities with slip danger. Walking method ramp test,2004--06.
10欧洲标准化学会.CEN/TS16165-2012.Determinalion of slip resistance of pedestrian surfaces-methods of evaluation, 2012-- 04.