|
US$364.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 29024.3-2025: Determination of particle size distribution - Single particle light interaction methods - Part 3: Light extinction liquid-borne particle counter
Status: Valid GB/T 29024.3: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 29024.3-2025 | English | 364 |
Add to Cart
|
4 days [Need to translate]
|
Determination of particle size distribution - Single particle light interaction methods - Part 3: Light extinction liquid-borne particle counter
| Valid |
GB/T 29024.3-2025
|
| GB/T 29024.3-2012 | English | 374 |
Add to Cart
|
3 days [Need to translate]
|
Determination of particle size distribution -- Single particle light interaction methods -- Part 3: Light extinction liquid-borne particle counter
| Valid |
GB/T 29024.3-2012
|
PDF similar to GB/T 29024.3-2025
Basic data | Standard ID | GB/T 29024.3-2025 (GB/T29024.3-2025) | | Description (Translated English) | Determination of particle size distribution - Single particle light interaction methods - Part 3: Light extinction liquid-borne particle counter | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A28 | | Classification of International Standard | 19.120 | | Word Count Estimation | 18,185 | | Date of Issue | 2025-06-30 | | Date of Implementation | 2026-01-01 | | Older Standard (superseded by this standard) | GB/T 29024.3-2012 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 29024.3-2025: Determination of particle size distribution - Single particle light interaction methods - Part 3: Light extinction liquid-borne particle counter
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT29024.3-2025
ICS 19.120
CCSA28
National Standard of the People's Republic of China
Replaces GB/T 29024.3-2012
Optical measurement method for single particle size analysis
Part 3.Liquid particle counters using the light obscuration method
(ISO 21501-3.2019, IDT)
Released on June 30, 2025
Implementation on January 1, 2026
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 Principle 2
5 Basic Configuration 2
6 Performance Requirements 3
6.1 Particle size setting error 3
6.2 Counting efficiency 3
6.3 Particle size resolution 3
6.4 Maximum particle number concentration 3
6.5 Sampling flow error 3
6.6 Sampling time error 3
6.7 Sampling Volume Error 4
6.8 Calibration Interval 4
6.9 Reporting of test and calibration results 4
7 Testing and calibration procedures 4
7.1 Particle size setting 4
7.2 Counting efficiency evaluation 6
7.3 Particle size resolution evaluation 6
7.4 Evaluation of overlap losses at maximum particle number concentration 7
7.5 Sampling flow rate error assessment 7
7.6 Sampling time error evaluation 7
7.7 Sampling Volume Error Assessment 8
Appendix A (Informative) Particle Size Resolution 9
Appendix B (Informative) Procedure for evaluating measurement uncertainty 10
Reference 13
Preface
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.
This document is part 3 of GB/T 29024 "Particle size analysis - Optical measurement of single particles". GB/T 29024 has been published.
The following sections.
--- Part 2.Light scattering liquid particle counter;
--- Part 3.Light obstruction method for liquid particle counters;
--- Part 4.Clean room light scattering particle counter.
This document replaces GB/T 29024.3-2012 "Particle size analysis - Optical measurement of single particles - Part 3.Liquid particle counting"
Compared with GB/T 29024.3-2012, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
--- Changed the scope (see Chapter 1, Chapter 1 of the.2012 edition);
--- Changed the terms and definitions of calibration particles (see 3.1, 3.1 of the.2012 edition);
--- Added a chapter on principles (see Chapter 4);
--- Added a chapter on basic configuration (see Chapter 5);
--- Changed some performance requirements (see Chapter 6, Chapter 3 of the.2012 edition);
--- Changed some calibration procedures (see Chapter 7, Chapter 4 of the.2012 edition).
This document is equivalent to ISO 21501-3.2019 "Particle size analysis - Optical measurement of single particles - Part 3.Liquid particle size analysis using the light obscuration method"
Particle Counter.
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 and coordinated by the National Technical Committee for Particle Characterization and Sorting and Screen Standardization (SAC/TC168).
This document was drafted by. Tianjin Tianhe Analytical Instrument Co., Ltd., China Machinery Research Institute of Standards and Technology (Beijing) Co., Ltd., China Environmental Protection
Scientific Research Institute, Hefei Hongmeng Standard Technology Research Institute Co., Ltd., Wenling Luogang Machinery Co., Ltd., Shanghai Metrology and Testing Technology Research
Institute, Aviation Industry (Xinxiang) Measurement Technology Co., Ltd., Beijing Institute of Metrology and Testing Science, Guangdong Provincial Institute of Standardization, Tangshan Knowledge
Intellectual Property Protection Center, Huzhou Normal University, and China Jiliang University.
The main drafters of this document are. Fu Yan, Jiang Yan, Guo Debin, Wang Juan, Qu Xiaosuo, Xu Ling, Hou Changge, Dou Xiaoliang, Wu Limin, Hao Xinyou, Zhao Xiaoning,
Xue Minjie, Lü Hongnan, Yang Wen, Cao Feng, and Zhu Peiwu.
This document was first published as GB/T 29024.3-2012 in.2012, and this is the first revision.
introduction
Many fields require monitoring of particle contamination, such as the electronics industry, pharmaceutical industry, precision instrument (machinery) manufacturing industry, and medical field.
Particle counters are effective devices for monitoring particulate contamination in liquids. This document is intended to provide testing, calibration procedures and verification for particle counters.
Methods are used to ensure the accuracy of particle counter measurement results and the consistency of measurement results of different instruments.
GB/T 29024 "Particle size analysis - Optical measurement of single particles" is a standard for particle counter testing, calibration and verification methods.
It is mainly used to determine the particle size and quantity in the air or liquid, and consists of four parts.
--- Part 1.Light scattering aerosol spectrometer. Describes the measurement, calibration and verification methods of an optical aerosol particle counter.
--- Part 2.Light scattering liquid particle counter. Describes a method for measuring the size and number of particles suspended in a liquid.
Methods for measurement, calibration and verification of concentrations of light-scattering liquid particle counters.
--- Part 3.Light Obscuration Liquid Particle Counter. Describes a method for measuring the particle size and number concentration of particles suspended in a liquid.
Measurement, calibration and verification methods for light obscuration liquid particle counters.
--- Part 4.Cleanroom light scattering particle counter. Describes the optical particle counter used to determine the particle size distribution of airborne particles.
Methods of measurement, calibration and verification of counters.
Optical measurement method for single particle size analysis
Part 3.Liquid particle counters using the light obscuration method
1 Scope
This document specifies a light obscuration liquid particle counter for measuring the size and number concentration of particles suspended in liquids.
The light obscuration liquid particle counter described in this document is based on the measurement of single particles.
The typical particle size range measured by this method is 1 μm~100 μm.
This method is suitable for evaluating the cleanliness of drugs (such as injections, water for injection, intravenous injection solutions), and is also suitable for measuring the particle size in various liquids.
Number concentration and particle size distribution.
This document contains the following.
--- Particle size setting error;
---Counting efficiency;
---Particle size resolution;
--- Maximum particle number concentration;
---Sampling flow error;
---Sampling time error;
---Sampling volume error;
---Calibration interval;
---Test and calibration report.
2 Normative references
This document has no normative references.
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
calibration particle calibrationparticle
Monodisperse spherical particles of known average particle size, such as polystyrene latex spheres (PSL), whose standard values can be traced back to the International System of Units.
(SI), the standard uncertainty of the average particle size is no more than 2.5%. At a wavelength of 589nm (sodium D line), the refractive index of polystyrene latex spheres is
The emissivity is approximately 1.59.
NOTE. For spherical particles, the particle size is equal to the diameter.
3.2
Counting efficiency
When measuring a certified standard sample (3.7), the particle number concentration measured by the light obstruction liquid particle counter (3.3) is the same as that of the certified standard sample.
The ratio of the standard value.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 29024.3-2025_English be delivered?Answer: Upon your order, we will start to translate GB/T 29024.3-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 29024.3-2025_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 29024.3-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. Question 5: Should I purchase the latest version GB/T 29024.3-2025?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 29024.3-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.
|