Certified Sieves
These are the most widely used test sieves and are manufactured to a National or International Specification. Each is inspected, issued with a Certificate of Compliance and individually numbered to provide full traceability.

Certified Sieve	Certificate of Compliance

Calibrated Sieves
The sieve is inspected in accordance with the specification. Each sieve is supplied with a calibration certificate or inspection certificates giving the range of tolerances and measurements taken.

Mid Point Sieves
Test sieves with a more precise sieving medium where specification tolerances are reduced by 30% where attainable. Each sieve is supplied with a test certificate giving the range of tolerances and measurements taken.

Re-Certification Service
Sieves may be re-examined and measured in accordance with the appropriate specification. Complying sieves are issued with a Certificate of Compliance, Calibration or Inspection according to end users requirements.