GBZ44387-2024 English PDF

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GBZ44387-2024: Fine bubble technology - Measurement techniques for the characterization of fine bubbles
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Similar standards

GB/T 39990   GB/T 39193   GB/T 21649.2   GB/T 45322.2   GB/T 45322.1   

Basic data

Standard ID: GB/Z 44387-2024 (GB/Z44387-2024)
Description (Translated English): Fine bubble technology - Measurement techniques for the characterization of fine bubbles
Sector / Industry: National Standard
Classification of Chinese Standard: A28
Classification of International Standard: 19.120
Word Count Estimation: 20,275
Date of Issue: 2024-08-23
Date of Implementation: 2024-08-23
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GBZ44387-2024: Fine bubble technology - Measurement techniques for the characterization of fine bubbles

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GB /Z 44387-2024 Fine bubble technology - Measurement techniques for the characterization of fine bubbles Micro bubble technology Micro bubble characteristic measurement technology Fine bubble technology-Measurement techniques for the characterization of fine bubbles (ISO /TR 23015.2020, Fine bubble technology-Measurement techniques matrix for the characterization of fine bubbles, MOD) ICS 19.120 CCS A 28 Guiding technical documents of the People's Republic of China on national standardization Released on 2024-08-23 2025-03-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface ... Ⅲ Introduction Ⅳ 1 Scope ... 1 2 Normative references ... 1 3 Terms and Definitions ... 1 4 Abbreviations ... 1 5 Characterization of microbubbles ... 1 5.1 Overview ... 1 5.2 Comparison of bubble size and concentration measured by different techniques ... 2 6 Characterization techniques ... 3 6.1 Overview ... 3 6.2 Dynamic light scattering ... 3 6.3 Zeta potential measurement method (electrophoretic migration) ... 4 6.4 Particle Tracking Analysis ... 4 6.5 Laser diffraction method ... 5 6.6 Resonance mass measurement method 6 6.7 Resistance method ... 6 6.8 Ultrasonic Attenuation Spectroscopy 7 6.9 Optical Measurement Methods for Single Particles 8 6.10 Static Image Analysis ... 8 6.11 Dynamic Image Analysis ... 9 6.12 Static Multiple Light Scattering (SMLS) ... 9 References ... 11

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting is required. This document is modified to adopt ISO /TR 23015.2020 "Microbubble technology Microbubble characterization measurement technology matrix", file type The ISO technical report was adjusted to become my country's national standardization guiding technical document. Compared with ISO /TR 23015.2020, this document has the following structural adjustments. The first paragraph of Chapter 6 is adjusted to 6.1, and the subsequent numbers are postponed accordingly. - The technical differences between this document and ISO /TR 23015.2020 and their reasons are as follows. The parameter "concentration" in 5.1 is explained as "or the volume fraction of the gas in the mixture" to improve operability. - The following editorial changes were made to this document. The name of the standard is changed to "Microbubble Technology" Microbubble Characteristics Measurement Technology; - Correct the abbreviation of Ultrasonic Attenuation Spectroscopy to UAS; - Change the evaluation target parameter in 5.1 and “number concentration” in Table 1 to “concentration”; - GB/T 29022, which is referenced as an informative document, replaces ISO 2 2 4 1 2 (see Table 1, 6.2.2). GB/T 32671.2 replaces ISO 13099﹘2 (see Table 1, 6.3.2), and replaces GB/T 42348 with the informative reference ISO 19430 (see Table 1, 6.4.1, 6.4.2 and 6.4.5), replaces GB/T 19077 with the informative reference ISO 13320 (see Table 1 and 6.5.2) replaces ISO 13319 (see Table 1 and 6.7.2), replace ISO 20998﹘1 with the informative reference GB/T 29023.1 (see Table 1, 6.8.1 and 6.8.2), replace ISO 20998﹘1 with the informative reference GB/T 29023.1 GB/T 29024.2 replaces ISO 21501﹘2 (see Table 1 and 6.9.2), and replaces GB/T 29024.3 with the informative reference ISO 21501﹘3 (see Table 1 and 6.9.2), replaces ISO 13322﹘1 (see Table 1 and 6.10.2), replace ISO 13322﹘2 with the informative reference GB/T 21649.2 (see Table 1 and 6.11.1); Moved the "typical flow rate is 0.2 nL/s" of the measurement time of the resonance mass measurement method in Table 1 to the footnote of Table 1; - Correct the bubble particle size of the resistance method in Table 1 and the particle size in 6.7.3 to "50 nm to 1 600 μm"; - The bubble particle size of the static image analysis method, the bubble particle size of the dynamic image analysis method, the particle size of 6.10.3 and the particle size of 6.11.2 in Table 1 are Corrected to “ >0.5 μm”; Change "under revision" in Table 1 of the static multiple light scattering method standard to "ISO /TS 21357"; - Correct the bubble particle size of the static multiple light scattering method in Table 1 and the particle size in 6.12.3 to "10 nm to 1 mm"; - Replace ISO 22412.2017 with the informative reference GB/T 29022-2021 (see 6.2.1, 6.2.6, 6.4.6); - Deleted the reference standard ASTM E2834 in 6.4.2; - 6.8.4 Added Note. - Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the Chinese Academy of Sciences. This document is under the jurisdiction of the National Technical Committee for Standardization of Microbubble Technology (SAC/TC 584). This document was drafted by. East China University of Science and Technology, National Center for Nanoscience and Technology, Ningbo Haibo Group Co., Ltd., Beijing University of Chemical Technology, Baosteel Group Mining Research Institute (Co., Ltd.), Tongji University, Taizhou Juna New Energy Co., Ltd., Xi'an University of Architecture and Technology, Southeast University, Dachang Trading Co., Ltd. (Shanghai), Anhui Hengyu Environmental Protection Equipment Manufacturing Co., Ltd. The main drafters of this document are. Yang Qiang, Xu Xiao, Li Zhaojun, Zhou Lan, Xia Shaohua, Zhao Zhaolei, Luo Yong, Xiao Wei, Li Pan, Ding Rong, Zhang Zhiqiang, Yang Fang, Chen Lan, Yan Xiuying, and Wang Biao.

Introduction

Microbubble technology is widely used in cleaning, transportation, maintenance, agriculture, forestry, animal husbandry and fishery, food and beverage, cosmetics and biomedicine industries. The detection, characterization and quantitative description of the properties of microbubble mixtures are crucial to the development of microbubble technology, a common technology in multiple industries. Many of the techniques used to detect and characterize particles can also be used to characterize mixtures of fine bubbles in solution. However, some of these techniques may require Special sample handling, sample preparation or instrument setup are required to obtain quantitative and reliable results. This paper lists some techniques and discusses their applicability and limitations for characterizing fine bubble mixtures. It can exist in opaque liquids or high-viscosity liquids. When the number of bubbles is large, the sample solution containing tiny bubbles will become turbid. All fine bubble solutions are inherently dynamic, with their properties changing over time. For this reason, each technique (measuring The accuracy of the results is closely related to the sampling time. Most micro-bubble sample solutions contain both bubbles and solid particles. Not all particle measurement equipment can differentiate between particles and bubbles. Micro bubble technology Micro bubble characteristic measurement technology

1 Scope

This document describes the most commonly used microbubble preparation and characterization techniques and their interpretation, and outlines the advantages and limitations of each technique. This document applies to the measurement of bubble size, bubble size distribution and bubble concentration in the field of micro-bubble technology.

2 Normative references

This document has no normative references.

3 Terms and definitions

There are no terms or definitions that require definition in this document. The terminology bases maintained by ISO and IEC for standardization are as follows.

4 Abbreviations

The following abbreviations apply to this document. CCD. Charge coupled device DLS. dynamic light scattering EZ. Electrical sensing zone method LD. laser diffraction methods PTA. particle tracking analysis method RMM. resonance mass measurement SPOS. single particle light interaction methods SMLS. static multiple light scattering UAS. Ultrasonic attenuation spectroscopy ZP. methods for Zeta potential determination

5 Characterization of microbubbles

5.1 Overview There are many common particle counting and particle size measurement techniques, some of which are suitable for characterizing fine bubble dispersions. Dispersions can be present in a variety of liquids, some of which may be opaque (such as printer ink) or unstable (such as flammable fuels). This paper lists some commercially available technologies and analyses their applicability and limitations. The evaluation target parameters are as follows. Bubble Size. Usually refers to the equivalent hydrodynamic size, but may vary depending on the measurement technique. - Bubble size distribution. In this document, it refers to the number distribution of particle sizes (or other equivalent distribution). - ......

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