OIML G18 Controlled Vocabulary Julia Neumann 2022-12-16 2023-01-02 10:32:57 en-EN minimum and maximum admissible temperature (mAT and MAT) #00444 minimum and maximum water temperatures that a water meter can withstand permanently, within its rated operating conditions, without deterioration of its metrological performance. mAT and MAT are respectively the lower and upper of the rated operating conditions (ROC) 2022-12-19 09:13:35