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ISO/WD 21413

Methods for the measurement of groundwater level in a well

General information

20.98     Jul 11, 2025

ISO

ISO/TC 113/SC 8

International Standard

Scope

ISO 21413:2005 develops procedures and prescribes the minimum accuracy required of water-level measurements made in wells using graduated steel tapes, electric tapes and air lines. Procedures and accuracy requirements for measuring water levels in a flowing well are also included, as are procedures required to establish a permanent measuring point. ISO 21413:2005 discusses the advantages and limitations of each method and requirements for recording the data. ISO 21413:2005 does not include methods that use automated electrical or mechanical means to measure and record water levels.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 21413:2005

PUBLISHED
ISO/TR 23211:2009

NOW

ABANDON
ISO/WD 21413
20.98 Project deleted
Jul 11, 2025