News & Events

SMIIC MC Training in Mechanism of Work of Gas Measurements And the Method of Producing Reference Materialster

The 34st SMIIC MC Training within the SMIIC MC Work Plan 2021 – 2023 V2 was the The Mechanism of Work of Gas Measurements And the Method of Producing Reference Materialster that took place on the 30 November 2022 virtually, technically hosted by SMIIC General Secretariat. 15 experts participated in the training.

The training was hosted by NMI: SASO National Metrology and Calibration Center (NMCC)

General Description: General concepts and work mechanism of gas measurements.

Objective, expected outcome: To develop participants' skills in knowledge of reference material production and its importance in maintaining air quality.

Who should attend: The training will be attended by employees working in:

1-National Measurement Institute (NMI)  

2-Governmental agencies and private laboratories related to air quality monitoring.

ISO 6142-1: Gas analysis - Preparation of calibration gas mixtures -

Part 1: Gravimetric method for Class I mixtures

ISO 6143: Gas analysis - Comparison methods for determining and

checking the composition of calibration gas mixtures

Guide to the expression of uncertainty in measurement (GUM)

Date: 2 hours (30 November 2022)


En.Najjy H. AlYami (n.yami@saso.gov.sa)

Time Schedule: 10:30 – 12:30


  • Clarification of some metrological terms
  • Overview of (NMCC) " Saudi Arabia NMI"
  • The Mechanism of Work of Gas Measurements
  • Production steps of reference materials
  • Importance of reference materials for maintaining air quality
  • Evaluation of measurement uncertainty