# Water meter — Accuracy classes and maximum permissible errors for trade measuring instruments (EU MID)

For Water meter, annex is III; accuracy class is N/A (single class); condition is Error after durability test, upper zone (Q2 to Q4), cold water (0.1-30 degrees C); maximum permissible error is +/- 2.5 % of metered volume; scope or member state option is MI-001. Error after durability, upper zone, cold water, recorded from its source on 2026-08-05.

- **Instrument type:** Water meter _(verified: appears in the quote below)_
- **Annex:** III
- **Accuracy class:** N/A (single class)
- **Condition:** Error after durability test, upper zone (Q2 to Q4), cold water (0.1-30 degrees C) _(our reading, not quoted from the source)_
- **Maximum permissible error:** +/- 2.5 % of metered volume
- **Scope or member state option:** MI-001. Error after durability, upper zone, cold water. _(our reading, not quoted from the source)_

## What the source says

> ± 2,5 % of the metered volume between Q 2 included and Q 4 included for water meters intended to meter water with a temperature between 0,1 °C and 30 °C,

## Source

- https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32014L0032

Last verified: 2026-08-05. Review by: 2027-08-05.
Part of [Accuracy classes and maximum permissible errors for trade measuring instruments (EU MID)](https://referencesource.org/legal-metrology-accuracy-classes/).