There are two (2) types of calibration standards in existence.
Magnetic pull-off gauges (pen-type or banana style) are calibrated using fixed coated plate standards only. Magnetic flux and eddy current gauges (digital w/ probe) utilize either fixed coated plate standards or plastic.
Stock # 20199 PP Shims Kit w/ pouch (1, 2, 5, 10, 20 mil)
Stock # 20199 A Shims Kit w/ pouch (1 to 60 mils)
Directly traceable to The National Institute of Standards (NIST) Certificate of Accuracy included 0.0004 mil resolution (+/- 1.5% accuracy) N.I.S.T. Certificate No. 68146-A, 85691- includes zero plate and two other coated plates (Epoxy)
Stock # 20196-CAL-S1 0 to 60 mil standards – ferrous
Stock # 20199 A 0 to 20 mil standards – non ferrous
A set of four precision plates mounted on a single card. Used for the calibration of Type 1 Magnetic Pull-Off Gauges.
Includes leather storage case.
Size: 8.5” x 6” overall
Each Plate Measures: 2” x 2”
Stock # 20180B MT-S3 STD (8.09 to 85.43 mils)
Stock # 20180C MT-S5 STD (43.3 to 167 mils)