GB/T 36422-2018 in English

VALID

Man-made fiber—Test method for micro morphology and diameter—Scanning electron microscope method

Issued on:2018-06-07
Implemented on:2019-01-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $100.00
$97.00

Standard No:	GB/T 36422-2018
Document status:	VALID
Title in English:	Man-made fiber—Test method for micro morphology and diameter—Scanning electron microscope method
Title in Chinese:	化学纤维微观形貌及直径的测定扫描电镜法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2018-06-07
Implemented on:	2019-01-01
ICS Classification:	59.060.20-Man-made fibres
Chinese Classification:	W50-Chemical fibre in general
Professional Classification:	GB-National Standard
Related Keywords:	diameter scanning electron microscope method introduction interpretation man-made fiber test method electron microscope fiber diameter application instrument resolution secondary electron image resolution
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《GB/T 36422-2018化学纤维微观形貌及直径的测定扫描电镜法》由TC586（全国化学纤维标准化技术委员会）归口，主管部门为国家标准化管理委员会。

Introduction

Interpretation of GB/T 36422—2018 National Standard of the People's Republic of China

Background and Significance of the Standard

GB/T 36422—2018 "Determination of Micromorphology and Diameter of Chemical Fibers by Scanning Electron Microscope" is an important national standard formulated for the measurement of micromorphology and diameter of chemical fibers and their products. This standard is based on scanning electron microscopy (SEM) technology and provides a scientific and accurate test method.

This standard was proposed and managed by the China National Textile and Apparel Council, and the drafting units include many authoritative research institutions and enterprises, ensuring its scientificity and practicality. Through this standard, the technical requirements for the determination of micromorphology and diameter of chemical fibers can be unified, providing a standardization basis for related industries.

Technical Principles and Methods

The core technology of this standard is based on scanning electron microscopy (SEM), which uses a focused electron beam to scan the sample surface, stimulate secondary electron signals and form an image. By observing the microscopic morphology of the fiber and measuring its diameter, it can provide important data for the quality control and research of chemical fibers.

Technical dimensions	Specific requirements	Scope of application
Instrument resolution	Secondary electron image resolution is better than $20~\mathrm{nm}$	Applicable to all chemical fiber types
Magnification	At least 30 times to 20,000 times	Meet high-precision measurement requirements
Sample preparation	Gold film spraying under vacuum conditions	Applicable to short fibers, filaments and textiles

Instrument and material requirements

According to the standard, the main instruments and materials required for the test include:

SEM (secondary electron image resolution better than $20~\mathrm{nm}$, magnification at least 30 times to 20000 times)
Vacuum sputtering instrument or sputtering instrument
Haggard slicer or other types of fiber cutters
Tweezers, scissors, ear cleaning bulbs
Copper or aluminum sample holder
Conductive glue
Gold film material

Implementation suggestions and precautions

To ensure the effective implementation of the standard, it is recommended that:

Strictly follow the sample preparation requirements to avoid affecting the accuracy of the test results.
Choose the appropriate magnification and resolution to ensure the clarity of fiber morphology and diameter measurement.
For samples with large coefficient of variation of fiber diameter, the number of measured samples needs to be increased to improve data reliability.
Regularly calibrate instruments and equipment to ensure that their performance meets standard requirements.

Conclusion and Prospects

The implementation of GB/T 36422—2018 provides an important basis for the quality control and research of chemical fibers. With the advancement of technology, the test efficiency and accuracy can be further improved in the future by combining artificial intelligence and automated analysis.

More samples: DL/T 368-2010 NB/T 47013.2-2015 QC/T 942-2021

Sample only — not a preview of GB/T 36422-2018

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