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 benefit 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.


As of July 1st 2003, ATEQ  S.A.S (France laboratory) offers its customers the option to include an ISO/IEC17025 accredited calibration of their pressure instruments.

Accredited (ISO/IEC 17025) Pressure and Gas flow
 from 0 to 1330 Pa relative
HIGH PRESSURE from – 0.95 to 25 bar relative
ABSOLUTE PRESSURE from 0.020 to 25 bar
GAS FLOW from 0.4 to 5 000 ml/min /  5 000 to 80 000 ml/min (300 to 4 800 l/h)

Pressure and gas capabilities don’t apply to all locations, please see the scope of accreditation for each certificate number for specific capabilities.

ATEQ SAS (France laboratory) ISO/IEC 17025 accredited by A2LA certificate 2831.02 in pressure and in gas flow

ATEQ has 15 ISO/IEC 17025 accredited labs all over the world :

Canada: accredited by A2LA certificate 2831-01
ATEQ S.A.S.: accredited by A2LA certificate 2831-02
FRANCE: accredited by A2LA certificate 2831-03
USA: accredited by A2LA certificate 3049.01
China: accredited by A2LA certificate 3049.02
India: accredited by A2LA certificate 3049.03
Japan: accredited by A2LA certificate 3049.04
Singapore: accredited by A2LA certificate 3049.06
Mexico: accredited by A2LA certificate 3049.07
Poland: accredited by A2LA certificate 3049.08
Taiwan: accredited by A2LA certificate 3049.09
Italy: accredited by ACCREDIA certificate 245
Brasil: accredited by INMETRO certificate N° CAL 0745
Spain: accredited by ENAC certificate Nº244/LC10.203
Germany: accredited by DAkkS certificate NºD-K-21260-01


Thanks to this facility, ATEQ can offer to its customers in more than 32 countries a direct certification link to their local standards.

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