Manual methods for the measurement of a groundwater level in a well Ingestion-build-239834 Note: The explanation of the

Note: The explanation of the symbols

BS EN 9132:2017 supersedes BS EN 9132:2006

radio frequency systems

along with ISO 16000‑38

that helps manufacturers to ensure the quality of cooking fume extractors

Manual methods for the measurement of a groundwater level in a well Ingestion-build-239834 Note: The explanation of the1 Scope This International Standard 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. This International Standard discusses the advantages and limitations of each method