Sieve Calibration standard (100mm or 3") 300 microns or No.50
Calibration standard for 100mm or 3" diameter sieves, NIST Traceable for 300 microns or No.50 : Sample Quantity is 5 x 0.70g.
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Calibration standards for 3-inch and 100mm diameter sieves are also available. Contact us for a quote.