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GB/T 45876-2025: Imaging materials - Methods for characterization of particles
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 45876-2025 | English | 209 |
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Imaging materials - Methods for characterization of particles
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GB/T 45876-2025
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Basic data | Standard ID | GB/T 45876-2025 (GB/T45876-2025) | | Description (Translated English) | Imaging materials - Methods for characterization of particles | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G81 | | Classification of International Standard | 37.040.99 | | Word Count Estimation | 10,166 | | Date of Issue | 2025-06-30 | | Date of Implementation | 2026-01-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45876-2025: Imaging materials - Methods for characterization of particles---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/GBT45876-2025
ICS 37.040.99
CCSG81
National Standard of the People's Republic of China
Characterization Methods of Particles in Imaging Materials
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
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Overview 2
5 Interference 2
6 Instruments and Equipment 2
7 Reagent 2
8 Sample Preparation 3
9 Particle imaging by optical, scanning or transmission electron microscopy 3
10 Particle Characterization 3
11 Test Report 4
Appendix A (Informative) Particle Classification, Size Calculation and Shape 5
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.
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 China Petroleum and Chemical Industry Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Photosensitive Materials (SAC/TC102).
This document was drafted by. China Lucky Group Co., Ltd., Lucky Film Co., Ltd., Lucky Medical Technology Co., Ltd., Shanghai Aviation
Tian Equipment Manufacturing Factory Co., Ltd.
The main drafters of this document are. Xia Jiangnan, Gao Jianhui, Jiang Ning, Liu Qian, Xiong Shuqiang, Li Wanying, Jiang Xiaoli, Lu Zhikai, and Cheng Xuemei.
Characterization Methods of Particles in Imaging Materials
1 Scope
This paper describes the use of optical microscopy (OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) to characterize the silver halide colloids.
Method for characterizing the shape and size of silver halide particles in films and silver behenate particles in direct digital thermal silver salt dry films.
This document applies to the characterization of silver halide particles in silver halide films and silver behenate particles in direct digital thermal silver halide dry films.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 6682 Specifications and test methods for water used in analytical laboratories
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Agglomeration
Two or more particles held together by relatively weak adhesive forces (caused by weak chemical bonds or electrostatic surface charges generated by processing or handling)
A collection of multiple particles.
3.2
particle
The smallest discrete unit that can be determined in a test method.
NOTE. Nanoparticles are particles with at least one dimension smaller than 100 nm.
3.3
rectangularparticle
Particles that are close to square or rectangular in shape.
3.4
spherical particles
Round particles.
3.5
Feretdiameter Feretdiameter
The distance between two parallel lines of the particle projection outline measured along a certain direction.
3.6
particle length
The maximum length of a particle along a certain direction in the projected image.
3.7
Particlebreadth
The maximum width of a particle along a certain direction in the projected image.
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