O Scale Durometers
PTC®'s Shore O scale durometer gauge measures the hardness of soft rubber, very soft plastics, nylon, rayon, orlon, artgume, and textile windings and meets or exceeds ASTM D2240 standards.
A written calibration report for any durometer covered by current ASTM D2440 or ASTM F1957 specifications is available from PTC Metrology™ Certification provides "as received" and "as left" data. Calibration points for force curve and gage linearity are every 10 points over the scale (0-100) of the durometer. Available in both Analog and Digital, with five styles to choose from.