Jun 8 2006
The on-site calibration of test sieves has been further simplified by the introduction of new software from Whitehouse Scientific. Every sieve manufactured from 20 to 3350 microns, ranging in diameter from 40 to 450 mm, can now be unambiguously calibrated.
The new program will be provided free of charge to customers purchasing the company’s calibration standards. It allows the calculation of sieve apertures directly from the weight of glass calibration beads passing through the sieve. To determine the mean aperture size, the operator simply selects the nominal rating of the sieve to be calibrated and enters the initial weight and the weight of the beads passing through.
Using the new program it is possible to measure more than 80% of available apertures, with full NIST traceability, in under two minutes. The speed, simplicity and reliability of the Whitehouse procedures have eliminated the need to return sieves to the manufacturer for recalibration.