00CS-38 : 38 microns or No.400
Calibration Standard for 200mm (8") Diameter Sieves, NIST Traceable for 38μm (No.400); also suitable for 36μm and 40μm; 5 bottle set, 1.0g per bottle
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Calibration Standard for 200mm (8") Diameter Sieves, Aperture Size 38μm (No.400). Also suitable for 36μm and 40μm sieves. Set of 5 bottles, 1.0g per bottle. Mean aperture sizes traceable to NIST. Single-shot bottles remove operator bias.