Test Sieve Certification and Calibration

What is Test Sieve Certification?

Test Sieve Certification is the statement or verification that a sieve meets or exceeds written standards. It is an assurance that a sieve was manufactured to (and performs to) a certain level of performance. This is an important factor in quality control. W.S. Tyler offers two levels of certification for Test Sieves.

W.S. Tyler Test Sieve offers premium analysis and certification services to ensure their performance for quality control programs. Our services are applicable for both new and in-use test sieves.

The Primary Standards that govern Test Sieves are ASTM E11 and ISO 3310-1. Both W.S. Tyler and its parent organization, Haver & Boecker, are very active on the committees that write and oversee the Standards. By contributing our many years of expertise to the various committees, the marketplace can rely on the Standards to be valuable and practical to the product users.

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%.

+

Sieves are analyzed to meet ASTM and ISO Standards, Serialized, and is traceable to International Standards.

Click here to preview a sample certification

Request Information

or call us 1-800-321-6188

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%.

+

Sieves are analyzed to meet ASTM and ISO Standards, serialized and is traceable to International Standards.

Click here to preview a sample certification

Request Information

or call us 1-800-321-6188