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ISO 23668:2022

M00001481

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ISO 23668:2022 Ships and marine technology - Marine environment protection - Continuous on-board pH monitoring method

standard by International Organization for Standardization, 10/31/2022

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This document specifies the performance requirements and the test procedures for a pH meter used for continuous on-board monitoring using combination electrodes. The pH meter applies to measuring the pH of the following water for on-board consumption and research purposes:

a) natural seawater and freshwater,
b) freshwater produced from freshwater generators,
c) the used process water for running machinery on-board ships.

This document also specifies the method for evaluating performance, calibration, and maintenance of a pH meter used for continuous on-board monitoring.