A network analyzer, like most electronic instruments requires periodic calibration - typically this is performed once per year and is performed by the manufacturer or by a 3rd party in a calibration laboratory.

WGYT's highly advanced environmentally controlled pressure sensor calibration laboratory.

Sound calibrators should also be calibrated regularly at a nationally accredited calibration laboratory to ensure traceability.

Teseq operates ISO 17025 accredited calibration laboratories with EMC specialization.

Fluke's NIST-traceable in-house calibration laboratory provides the standards to which Fluke products and manufacturing equipment are calibrated and maintained.

The calibration of ear simulator systems is often carried out by specialist test and calibration laboratories, or a National Measurement Institute, such as NPL in the UK.

The term "commercial metrology" is also used to describe calibration laboratories that are not owned by the companies they serve.

The dissemination of traceability to consumers in society is often performed by a dedicated calibration laboratory with a recognized quality system in compliance with such standards.

The CLAS program provides quality system and technical assessment services and certification of specific measurement capabilities of calibration laboratories in support of the Canadian National Measurement System.

It has several specialized shops and calibration laboratories.