|
 "Certified" test sieves are standard production products, specifically reexamined for assurance to referenced specifications. The sieve is serialized and supplied with documentation, traceable to NIST, detailing the openings and wire diameters of the mesh. W. S. Tyler uses a View Bazic 8 Image Analyzing Machine to perform our "Certification" and "Recertification" services. This state of the art equipment is capable of measuring to tolerances of less than one micron.
In addition the View Bazic 8 allows W.S. Tyler to measure considerably more openings and wire diameters than currently specified by ASTM E-11. The added measurements and the pattern of examination offer statistically more valid information.
|
|
