Calibrating Test Sieves with Glass Bead Method

Whitehouse Scientific has added a two-minute video to its website that takes viewers through the complete methodology for calibrating a test sieve using the company's glass bead method. The clear visual demonstration and concise verbal instructions are designed to help newcomers to the method or to act as a refresher for existing users. Access to the video is via the 'sieve standards' page of the Whitehouse Scientific website, where visitors can also download written instructions.

The company's NIST traceable sieve standards are narrow distribution glass microspheres that enable the on-site calibration of sieves from 20-3,350um. Accurate to 1um for smaller sieve apertures, these standards allow complete calibration in around two minutes and the results are independent of the sieve shaking method used. Furthermore, single-shot bottles remove operator sampling errors, making the entire process more reliable and reproducible.

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