The Brungraber Mark I is a device that can measure if a bathtub is too slippery in accordance with ASTM Standards*. If you have a bathtub claim and need the facts, the Brungraber Mark I can measure the slip resistance of a tub and let you know if you’re standing firm or in a slippery situation. *The American Society for Testing and Materials (ASTM) Standard F462 “Standard Consumer Safety Specification for Slip-Resistant Bathing Facilities”
