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Certified Plastic Shims are available in a variety of nominal thicknesses as shown below, and can be purchased individually, packaged in a protective plastic pouch, or in a set of 8 shims in a hard folder to preserve and protect the calibration foils. DeFelsko Plastic Calibration Shims are labelled in both mils and microns. Each shim or shim set is supplied with a Certificate of Calibration showing traceability to NIST.
| Order Code | Approx. Thickness | Colour | Accuracy |
| CS1 | 25 µm/1 mil | Orange | + 2 µm / + .08 mil |
| CS2 | 50 µm/2 mil | Red | |
| CS3 | 75 µm/3 mil | Green | |
| CS5 | 125 µm/5 mil | Blue | |
| CS10 | 250 µm/10 mil | Brown | |
| CS20 | 500 µm/20 mil | Yellow | |
| CS40 | 1000 µm/40 mil | White | |
| CS60 | 1500 µm/60 mil | Black | |
| CSS | COMPLETE SET OF ABOVE 8 THICKNESSES | ||
