worldwide service centers  usa • china • japan • netherlands
worldwide support find us near you

DHI's outstanding calibration, testing and repair services are dedicated
to filling your needs quickly and at a fair cost while maintaining
the unmatched level of quality that is our trademark.

The DH Instruments (DHI) calibration laboratory is accredited by the American Association of Laboratory Accreditation (A2LA, Certificate No. 1599.01) to ISO/IEC 17025 and ANSI/NCSL Z540-1-1994. Through accreditation to ISO/IEC 17025, DHI also performs calibrations in accordance with ISO 9001 or ISO 9002. By Mutual Acceptance Arrangement, Test Reports and Calibration Certificates issuedby A2LA accredited laboratories are accepted on an equal basis by signatories of International Laboratory Accreditation Cooperation (ILAC), European Cooperation for Accreditation (EA), Asian Pacific Laboratory Accreditaiton Cooperation (APLAC), Inter-American Accreditation Cooperation (IAAC) and many other accrediting bodies (visit www.a2la.org for additional information).