Sieve Certification, Inspection and Calibration Services

CENTERLINE® Premium Sieve Certification
Our Premium Sieve Certifications are an add-on service when you purchase a new sieve or can be performed on your existing sieves.

By employing sophisticated optical technology - like the CENTERLINE® Measurement System - we ensure your test sieves comply with the ASTM E 11 standards created by the American Standards Testing Materials International Committee.  It's yet another method to elevate quality control and provides data that can become an integral part of your Quality Assurance Program.

ASTM E 11 Specifications
The "NEW" ASTM E 11-09 specification now includes three different grades (compliance, inspection and calibration) for test sieves, wash sieves and woven wire cloth.  The added levels of certification allow customers the ability to more precisely evaluate where their sieves lie in relation to the E 11-09 standards.  The revised standards table includes dimensions and permissible variations for the sieve cloth itself and inspection criteria for the three grades.  The following documentation is provided for each grade:

• Compliance grade sieves come with basic documentation from the sieve manufacturer that it has been inspected and found to be made in compliance to the standard.
    
• Inspection grade sieves are supplied with an Inspection Sieve Certificate containing inspection data that has a percentage of openings and wire dimension measured based on the standards table providing you with a confidence level of 99% that your sieve is within the specifications.  Must be ordered separately.
  
  
• Calibration grade sieves are supplied with a Calibrated Sieve Certificate containing data of at least twice as many apertures measured than inspection sieves, thereby providing an increased confidence level of 99.73%.  Must be ordered separately.

Advantech continues to provide sieve certification services in compliance with the older ASTM E 11-04 standards.  This allows your older sieves to be re-certified with the same level of compliance criteria as previously performed.

• ASTM E 11-04 Sieve Certificate is supplied documentation which is based on the older standard guidelines.  The E 11-04 standard varies in that is has a fixed number of measured openings per sieve, in comparison with the E 11-09 inspection and calibration grades which are based on a percentage of openings measured.  Must be ordered separately.

Adjusting to ever-changing needs
Setting quality standards above everything else, Advantech Manufacturing has been at the forefront of the particle sizing industry.  Depending on your particular application, the current ASTM E 11 specification limits of your test sieve may be too broad.  With the CENTERLINE® Measurement System, we've perfected the ability to evaluate exactly where your sieve lies in relation to the ASTM E 11 standards.

Quality Assurance
By utilizing a sophisticated image analyzer traceable to the National Institute of Standards and Technology (NIST), your sieve is scanned for irregularities.  Physical measurements are taken in a midpoint orientation of the wire in the X and y directions (warp and weft), and the wire diameters are measured to ensure compliance with the ASTM E 11 specification.  The data gathered is summarized in a comprehensive verification report that includes:

• Statistical data from the actual readings (x and y directions).
• An evaluation of the wire diameters.
• Detailed comparison of your sieve to the corresponding ASTM E 11 grade specification.

Each sieve is serialized for accurate identification in your Quality Assurance Program.

As with any precision lab instrument, periodic inspection or calibration is recommended.  Re-certification depends upon sieve usage, care and your internal quality system requirements.  As a guideline, we recommend certifying your sieves on a semi-annual basis.