| IoT | Internet of Things |
| WELMEC | (Western) European Legal Metrology Cooperation |
| SI Units | International System of Units |
| FAIR+T | Findable, Accessible, Interoperable, Re-usable, and Traceable |
| IIoT | Industrial Internet of Things |
| DCC | digital calibration certificate |
| MI | measuring instruments |
| PoW | Proof-of-Work |
| PoS | Proof-of-Stake |
| PoA | Proof-of-Authority |
| LR | legally relevant |
| NLR | legally non-relevant |
| PKI | public-key infrastructure |
| NMI | national metrology institute |