The twelth SMIIC MC Training within the SMIIC MC Work Plan 2021 – 2023  was the Training on  General Concepts of Mass Metrology took place on the  17 November 2021 virtually, technically hosted by SMIIC General Secretariat.

The training is hosted by NMI: SASO National Metrology and Calibration Center.

General Description: The training covers general aspects of mass metrology
Objective: To provide knowledge and to develop skill of participants in calibration of the mass measuring devices
Who should attend: The training would be attended by staff working in metrology laboratories at the level of National Metrology Institutes or secondary level calibration laboratories
References used for training:
- International recommendation OIML R 111 Weights of classes E1, E2, F1, F2, M1, M1–2, M2, M2–3 and M3
- International recommendation OIML R 76 for Non-automatic weighing instruments
- EURAMET Calibration Guide No. 18 for Guidelines on the Calibration of Non-Automatic Weighing
- International vocabulary of metrology - Basic and general concepts and associated terms (VIM)
- Guide to the expression of uncertainty in measurement (GUM)
Duration of training: 1 day (17 November 2021)
Lecturers: Saud Alqarni (sm.qarni@saso.gov.sa).
Rayan Alyousefi (r.yousefi@saso.gov.sa).
Ahmed AlJuwyr (a.juwyr@saso.gov.sa).
Abdullah AlShamrani (am.shamrani@saso.gov.sa).
Time Schedule: Day 1-10:30 -13:30
Subject/Activities:
 Basic of mass measurements
 Classification of weight and balance instruments
 Tractability to the SI units in the mass field
 Method and procedure for calibration of primary / standard weights
 Evaluation of measurement uncertainty for weights
 Reporting results and preparation of the calibration certificate