Endecotts calibration samples are microspheres formed of soda-lime glass that range from 3.35mm down to 20 micron sizes. Because of the precise nature and extent of the range of spheres, samples can be supplied to enable the accurate calibration of individual sieves.

Being spherical the use of calibration samples gives extremely accurate results.

Endecotts glass calibration samples will enable you to calibrate your test sieves to an accuracy of approximately 1µm. Because the microspheres pass over virtually the total surface of the sieve more apertures are examined than with any other method, making it one of the most accurate methods of sieve calibration available.

Endecotts glass microspheres are calibrated by Whitehouse Scientific, who are recognised as one of the leading particle analysis laboratories by the BCR, and by 20 other leading European particle size analysis laboratories.