Chiyoda-ku, Tokyo / Stainless steel test sieve / Stainless steel product processing / Sales of ultrasonic sieving machine
ISO / IEC17025 calibration certificate
Tokyo Screen Co., Ltd. is a calibration organization that meets the requirements of the ISO/IEC 17025 international standard and is officially recognized as a conformity assessment organization capable of providing technically appropriate calibration results. It is able to issue calibration certificates bearing the ILAC/MRA symbol mark for JIS Z 8801-1 test sieves.
Since October 2016, we have been accredited by ISO / IEC 17025 measuring institutions. In 2020, in addition to the conventional calibration range of JIS Z 8801 test sieve frames (φ75, φ150, φ200, φ300), non-JIS standard frames (φ50, φ100, φ203, φ250) that were out of range. The range has been expanded so that the opening of 13 μm and 16 μm (tolerance equivalent to 20 μm) can be calibrated.
We have established a system for more reliable calibration, and we will carry out calibration work in the following form from orders received after November 1, 2020.
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① Calibration certificate: Limited to new products
• Aperture size and frame dimensions within the JIS Z 8801 standard
• Frames outside the JIS standard (φ50, φ100, φ203, φ250, etc.)
• Aperture sizes outside the JIS standard (13 μm, 16 μm)
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② Manufacturer inspection: products already delivered and used products
• Measured according to the inspection method specified in JIS Z 8801
• Issuance of aperture inspection report -
③ Re-inspection: test sieves already delivered with an inspection report or calibration certificate
• Measured according to the inspection method specified in JIS Z 8801
• Issuance of aperture re-inspection report
* Calibration is limited to new products. For inspection and re-inspection, we may decline items that are excessively dirty or damaged.
* Frame dimensions are limited to a maximum inner diameter of φ300; anything larger cannot be calibrated or inspected.
