The field of Electrical Testing covers tests of an essentially electrical nature performed on instruments, equipment, appliances, components and material. The calibration of electrical and electronic instruments and equipment is included in the Metrology and Calibration field.

With accreditation, electrical testing laboratories receive formal recognition of their technical competence after assessment of their processes, facilities, staff and other key factors which relate to, and impact on the quality of the testing service provided.

Accreditation Criteria


  • NZS ISO/IEC 17025 General Requirements for the Competence of Testing and Calibration Laboratories and specific technical criteria where appropriate.


Classes of Test

The classes of test for accredited electrical testing laboratories are flexible to ensure that the scope of accreditation of each laboratory is fully informative, to the advantage of both the laboratory and the client. See full list in Appendix 1 of the Specific Criteria for Electrical Testing.


Assessments for electrical testing laboratories give consideration to:

  • Laboratory accommodation and safety
  • Laboratory equipment management and calibration
  • Laboratory staff
  • Laboratory test methods
  • Uncertainty of measurement
  • Identification of test items
  • Reports and records
  • Computer-controlled test equipment
  • Proficiency testing and quality control
  • Management system maintenance and implementation