Sieve Calibration – a New Simple but High Precision Approach

✍ Scribed by Graham R. Rideal; Jamie Storey; Thomas R. Morris

• Book ID: 101383198
• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 325 KB
• Volume: 17
• Category: Article
• ISSN: 0934-0866
• DOI: 10.1002/1521-4117(200006)17:2<77::aid-ppsc77>3.0.co;2-r

✦ Synopsis

This paper describes the preparation, measurement and use of microspheres for calibrating individual test sieves. Using a 63 mm sieve as an example, 2.5 million apertures, or 80% of the surface is examined in under 2 minutes. Because of the narrowness of the size distribution, a 5% difference in percent passing only results in a mean aperture difference of 1 mm, indeed, the measurement uncertainty for all 24 tests performed was only 0.7 mm. The calibration is independent of the method of shaking and can be used for most sieves.