STANDARD & ISO 17025 CALIBRATIONS
ATEQ USA has an ISO 17025 Accredited Lab to perform ISO calibrations on your leak testing instruments. Get your ATEQ instruments and orifices calibrated annually to ensure accurate readings with ATEQ’s standard or ISO 17025 calibration services. Send your equipment to a local ATEQ office or ask us about our On-site Calibration Services.
For repairs and calibrations outside the United States, please use our ATEQ Locations Map to find a location near you.

The Importance of Using an ISO 17025 Accredited Laboratory
ISO/IEC 17025 accreditation is the single most important standard for calibration and testing laboratories around the world. ISO 17025 accredited laboratories have demonstrated that they are technically proficient and able to produce precise and accurate test and calibration data. This is a third party-reviewed process that ensures a laboratory’s quality management system is thoroughly evaluated on a regular basis to guarantee continued technical competence and compliance with ISO 17025.
Laboratory accreditation bodies use the ISO 17025 standard specifically to assess factors relevant to a laboratory’s ability to produce precise, accurate test and calibration data; including:
- Traceability of measurements and calibrations to national standards
- Technical competence of staff
- Maintenance of test equipment
- Quality assurance of test and calibration data
- Validity and appropriateness of test methods
- Appropriate handling and transportation of test items
- Quality of calibration environment
To ensure continued compliance, accredited laboratories are regularly re-assessed to check that they are maintaining their standard of technical expertise. These laboratories are also required to participate in regular proficiency testing programs as an ongoing demonstration of their competence.
How Does this Benefits our Customers?
ISO 17025 accreditations help customers minimize risk by ensuring that they are choosing a technically competent lab that has a sound quality system in place. This also enhances customers confidence in our calibrations by assuring that the calibration has been performed by an independent, competent calibration laboratory that has been assessed by a third party.
Difference Between Accredited and Non-Accredited Calibrations?
Accredited calibrations are using validated methods in controlled environmental conditions.
Each calibration point has a calculated calibration uncertainty. Seal of confidence because the laboratory has been assessed by a third party.


16 ISO/IEC 17025 Accredited Laboratories Around the Globe
North America
- USA: accredited by A2LA certificate 3049.01
- Canada: accredited by A2LA certificate 2831-01
- Mexico: accredited by A2LA certificate 3049.07
Asia
- China: accredited by A2LA certificate 3049.02
- Japan: accredited by A2LA certificate 3049.04
- Korea: accredited by A2LA certificate 3049.05
- Singapore: accredited by A2LA certificate 3049.06
- Taiwan: accredited by A2LA certificate 3049.09
- India: accredited by A2LA certificate 3049.07
Europe
- France: accredited by A2LA certificate 2831-03
- Germany: accredited by DAkkS certificate NºD-K-21260-01
- Poland: accredited by A2LA certificate 3049.08
- Spain: accredited by ENAC certificate Nº244/LC10.203
- Italy: accredited by ACCREDIA certificate 01170
South America
- Brazil: accredited by INMETRO certificate N° CAL 0745
Thanks to its facilities around the world, ATEQ can offer to its customers in more than 32 countries a direct certification link to their local standards.