GB/T 5758-2023 in English

VALID

Determination for particle size,effective size and uniformity coefficient of ion exchange resins

Issued on:2023-08-06
Implemented on:2024-03-01
File Format:PDF
Delivery:Within 1 day

Price(USD)： $200.00
$194.00

Standard No:	GB/T 5758-2023
Document status:	VALID
Title in English:	Determination for particle size,effective size and uniformity coefficient of ion exchange resins
Title in Chinese:	离子交换树脂粒度、有效粒径和均一系数的测定方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Within 1 day
Issued on:	2023-08-06
Implemented on:	2024-03-01
Superseding:	GB/T 5758-2001 Determination for particle size range, effective size and uniformity coefficient of ion exchange resine
ICS Classification:	83.080.20-Thermoplastic materials
Chinese Classification:	G31-Basic standards and general methods for synthetic resin and plastic
Professional Classification:	GB-National Standard
Related Keywords:	ion exchange resins powdered ion exchange resins standard formulation ion exchange resins ion exchange effective particle size
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《GB/T 5758-2023离子交换树脂粒度、有效粒径和均一系数的测定方法》由TC15（全国塑料标准化技术委员会）归口，TC15SC4（全国塑料标准化技术委员会通用方法和产品分会）执行，主管部门为中国石油和化学工业联合会。

Introduction

Interpretation of GB/T 5758-2023, the National Standard of the People's Republic of China

Overview of the Standard

GB/T 5758-2023 mainly specifies the determination methods of particle size, effective particle size and uniformity coefficient of ion exchange resins, and is applicable to spherical and powdered ion exchange resins. Compared with the 2001 version, the new standard adds the definition and test method of average particle size, and introduces laser diffraction method as a supplement.

Technical Background Analysis

Background of Standard Formulation

Ion exchange resins are widely used in water treatment, chemical industry and other fields, and their performance is closely related to particle size distribution. Accurate determination of particle size parameters is crucial to ensure product quality and application effect.

Technical Evolution Analysis

New Content:Definition and test method of average particle size.
Method optimization: Improvements to wet sieving and dry sieving methods, and the addition of laser diffraction.
Application scope expansion: Supports a wider particle size range (0.1 μm to 3000 μm).

Comparison of Determination Methods

Determination Method	Scope of Application	Instrument Requirements	Advantages
Wet Sieving Method	Spherical Resin with Wet True Density > 1 g/mL	Standard Test Sieve, Separating Funnel, etc.	Intuitive operation, reliable results
Dry Sieving Method	Spherical Resin with Wet True Density ≤ 1 g/mL	Standard Test Sieve, etc.	Suitable for Low-Density Samples
Laser diffraction method	Powdered or granular resins from 0.1 μm to 3000 μm	Laser particle size analyzer	High precision, non-contact measurement

Implementation suggestions

Precautions in practical application

Sample pretreatment:Ensure that the sample state meets the test requirements, especially weak acidic and weak alkaline resins need to be fully washed.
Instrument calibration:Regularly calibrate the test sieve and laser particle size analyzer to ensure measurement accuracy.
Data processing:It is recommended to use professional software for data analysis to ensure the accuracy and consistency of the results.

More samples: QC/T 942-2021 GB 50021-2001(2009) DL/T 368-2010

Sample only — not a preview of GB/T 5758-2023

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