The Dual Scale 12"/31cm is now available in a NIST Certfied model. This acrylic radiopaque ruler is marked with 1/10th inch graduations on the top and 1 mm graduations on the bottom. Both Scales are certified to NIST standards. Supertech® radiopaque rulers are lead-free and are safe for skin contact. We offer radiopaque acrylic rulers from 50mm to 45cm and rulers that are certified to a NIST standard.
Acrylic radiopaque ruler is 3mm thick x 26mm wide and lead-free.
Supertech recommends cleaning radiopaque acrylic rulers with soap and water, to sterilize use ETO when needed. Do not use harsh chemicals, do not autoclave or steam clean.
These radiopaque rulers are calibrated and traceable to a National Institute of Standards Technology standard in Washington, D.C.. Each ruler is given a unique serial number and a calibration certificate.