HAST developed its first test sieve with the expertise and support of Haver & Boecker, Germany and W.S. Tyler, USA who have over 100 years of experience in the field. Repeatable test results and particle size distribution curves from laboratory to laboratory are extremely important to quality control programs, which is why you need the right sieve for an accurate analysis.
A. HAST provides test sieves in three grades:
- • Standard: Supplied with a Certificate of Compliance. Equal to ASTM E11-13 and ISO 3310. (The roll the mesh comes from is inspected at various points for compliance.)
- • Certified: Equal to ASTM E11-13 and ISO 3310 Inspection Sieve. (The sieve itself is inspected at various points to ensure compliance.)
- • Calibrated: Equal to ASTM E11-13 and ISO 3310 Calibration Sieve. (The sieve is inspected but at a higher number of points than the certified sieves to ensure accuracy and compliance)