Chiyoda-ku, Tokyo / Stainless Steel Test Sieves / Stainless Steel Fabrication / Ultrasonic Sieving Machines

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ISO/IEC 17025 Calibration Certificates

Test Sieves with Calibration Certificates
Test Sieves Compliant with JIS Z 8801

Tokyo Screen Co., Ltd. is an accredited calibration laboratory that meets the requirements of the international standard ISO/IEC 17025 and is officially recognized as a conformity assessment body capable of providing technically valid calibration results. We can issue calibration certificates bearing the ILAC MRA mark for JIS Z 8801-1 test sieves.

Calibration Scope
Calibration Scope for Test Sieves at Tokyo Screen Co., Ltd.

Since October 2016, we have maintained accreditation as an ISO/IEC 17025 calibration laboratory. In 2020, we expanded our calibration scope to include non-JIS frame sizes, such as φ50, φ100, φ203, and φ250, in addition to the conventional JIS Z 8801 test sieve frame sizes of φ75, φ150, φ200, and φ300. We can also calibrate aperture sizes of 13 μm and 16 μm with tolerances equivalent to 20 μm.
We have established a system for more reliable calibration. For orders received on or after November 1, 2020, calibration services are provided as follows.

  • 1. Calibration Certificates: New Products Only
    Measured according to the inspection method specified in JIS Z 8801
    • Aperture sizes and frame dimensions within the JIS Z 8801 standard
    • Non-JIS frame sizes, including φ50, φ100, φ203, and φ250
    • Non-JIS aperture sizes, including 13 μm and 16 μm
    Calibration certificate issued by an ISO/IEC 17025 accredited calibration laboratory, with the ILAC MRA mark
  • 2. Manufacturer Inspections: Previously Delivered and Used Products
    • Measured according to the inspection method specified in JIS Z 8801
    • Aperture inspection report issued
  • 3. Re-Inspections: Previously Delivered Test Sieves with an Inspection Report or Calibration Certificate
    • Measured according to the inspection method specified in JIS Z 8801
    • Aperture re-inspection report issued
* Each service includes a calibration certificate or inspection report for the measuring instrument, as well as a traceability chart.
* Calibration is available only for new products. For inspections and re-inspections, we may decline items that are excessively dirty or damaged.
* Frame dimensions are limited to a maximum inner diameter of φ300. Larger items cannot be calibrated or inspected.
  • Calibration Request Form


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    TEL: 03-3256-7457 (Business Hours: 9:00 a.m. – 6:00 p.m.)

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