TC 1  - Terminology

 TC 2  - Units of measurement

 TC 3  - Metrological control

 TC 4  - Measurement standards and calibration and verification devices

 TC 5  - General requirements for measuring instruments

 TC 6  - Prepackaged products

 TC 7  - Measuring instruments for length and associated quantities

 TC 9  - Instruments for measuring mass and density

 TC 10  - Instruments for measuring pressure, force and associated quantities

 TC 11  - Instruments for measuring temperature and associated quantities

 TC 12  - Instruments for measuring electrical quantities

 TC 13  - Measuring instruments for acoustics and vibration

 TC 14  - Measuring instruments used for optics

 TC 15  - Measuring instruments for ionizing radiations

 TC 16  - Instruments for measuring pollutants

 TC 18  - Medical measuring instruments