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W.S. Tyler Certifies Test Sieves to New ASTM E 11 Standard

W. S. Tyler now performs examinations to certify that test sieves conform to the new ASTM E 11 Standard for Inspection and Calibration Grades. W.S. Tyler’s optical analyzer is calibrated, ensuring the measurements are directly traceable to N.I.S.T., on a biannual basis.
 
Certification documents that include detailed histograms are supplied with both new and in-use test sieves. The Calibration Grade Certification process examines twice the number of apertures in a sieve than the Inspection Grade, and offers 99.73% assurance of accuracy.
 
W.S. Tyler also examines and certifies metric sieve cloth openings to ISO 3310-1 Standard.
 
Traceable certified test sieves are a requirement in many industry Quality System audits.
 
For more information, visit www.wstyler.com.

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