News — ISO 21501-4:2018

Particle Counter Trade-In offer

Posted by Ian Norman on Jan 07, 2026

Is your particle counter old, obsolete and not compliant with the latest standards? If so, read about our trade-in offer.

Tags: aerosol particle counters, ISO 21501-4:2018, ISO17025, particle counter, particle counter calibration, particle counters

PMT (GB) Limited has achieved ISO17025 (UKAS accreditation 0829) for Particle Counter Calibration and Air Sampler Calibration

Posted by Ian Norman on Mar 21, 2019

At PMT (GB) Limited, we are able to carry out Particle Counter Calibration and services on most particle counters manufactured by PMS, MET One, Lighthouse and Climet.

Tags: air sampler, air sampler calibration, ISO 21501-4:2018, ISO17025, particle counter, particle counter calibration