00CS-212 : 212 microns or No.70
Calibration Standard for 200mm (8") Diameter Sieves, NIST Traceable for 212μm (No.70); also suitable for 200μm and 224μm; 5 bottle set, 1.5g per bottle
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Calibration Standard for 200mm (8") Diameter Sieves, Aperture Size 212μm (No.70). Also suitable for 200μm and 224μm sieves. Set of 5 bottles, 1.5g per bottle. Mean aperture sizes traceable to NIST. Single-shot bottles remove operator bias.