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Quality Assurance and Traceability

Traceability System Diagram

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Traceability System Diagram -2

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Sound level meters and vibration level meters are designated as specified measuring instruments under the Measurement Law. Legally, when using them for trade or certification purposes, they must have passed "verification" or similar tests and bear a "verification mark" or "conformity mark."
Ono Sokki 's sound level meters are also sold with a "Certificate of Conformity" mark from a designated manufacturer.

* See also FAQ: "What are a Certificate of Conformity and a Certificate of Authenticity for Trade Use?"

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Standard conformity stamp sticker ↑
(image)		 Certification seal ↑
(image)
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Certificate of conformity (example)   Certificate of Authenticity (Example)