ISO 7383:2024
ISO 7383:2024 Fine bubble technology – Evaluation method for determining gas content in fine bubble dispersions in water – Part 2: Hydrogen content
CDN $261.00
Description
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.
Edition
1
Published Date
2024-07-01
Status
PUBLISHED
Pages
25
Language
English
Format
Secure PDF
Secure – PDF details
- Save your file locally or view it via a web viewer
- Viewing permissions are restricted exclusively to the purchaser
- Device limits - 3
- Printing – Enabled only to print (1) copy
See more about our Environmental Commitment
Abstract
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.
Previous Editions
Can’t find what you are looking for?
Please contact us at:
Related Documents
-
ISO 16417:2020 Earth-moving machinery – Hydraulic breakers – Terminology and commercial specifications
CDN $130.00 Add to cart -
ISO 23066:2021 Vocabulary related to rattan materials and products
CDN $85.00 Add to cart -
ISO 34000:2023 Date and time – Vocabulary
CDN $85.00 Add to cart -
ISO 6405:2017 Earth-moving machinery – Symbols for operator controls and other displays – Part 2: Symbols for specific machines, equipment and accessories
CDN $393.00 Add to cart
