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ISO 7383-2:2024

Current Revision

Fine bubble technology - Evaluation method for determining gas content in fine bubble dispersions in water - Part 2: Hydrogen content

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This document specifies the evaluation methods for hydrogen content in ultrafine bubble (UFB) dispersions.

The titration (oxidimetry) method can be used as a quick method to estimate the hydrogen content in hydrogen UFB dispersions. The lower limit of detection is 0,1 mg/l, and the range with acceptable accuracy is between 0,2 mg/l and 1,6 mg/l. The existence of oxidizing or reducing substances in dispersions influences measurement accuracy.

The gas chromatographic method features a considerably high accuracy range and lower limit of detection. The existence of UFBs in water does not influence the measurement results. The existence of oxidizing or reducing substances in water does not affect the measurement accuracy either. However, the measurement procedure is time consuming.

NOTE            This document only provides a method for determining hydrogen contents in UFB dispersions and does not involve the specific effects of hydrogen UFB dispersion application.


SDO ISO: International Organization for Standardization
Document Number ISO 7383
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 281
Publish Date Document Id Type View
Not Available ISO 7383-2:2024 Revision