Both of the following Certification grades can be purchased at an additional cost upon purchasing a W.S. Tyler Test Sieve and are traceable to International Standards.
W.S. Tyler’s laboratory examinations are performed with an automatic, non-contact, dimensional measurement system with an accuracy of +/- one-tenth of a micron. W.S. Tyler, on average, performs 10,000 examinations per year in our on-site working laboratories.
Level 1
Inspection Grade Test Sieve Certification
Sieves have a specified number of openings measures in each sieve after the sieve cloth is mounted in the frame to a confidence level of 99%.
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Sieves are analyzed to meet ASTM and ISO Standards, Serialized, and is traceable to International Standards.
Click here to preview a sample certification
Level 2
Calibration Grade Test Sieve Certification
Sieves have about double the amount of openings measures as in the Inspection Grade Certification after the sieve cloth is mounted in the frame. This higher number of measurements increases the confidence level to 99.73%.
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Sieves are analyzed to meet ASTM and ISO Standards, serialized and is traceable to International Standards.
Click here to preview a sample certification
