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GB/T 15171-2025: Test method for sealing performance of package
Status: Valid GB/T 15171: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 15171-2025 | English | 219 |
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Test method for sealing performance of package
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GB/T 15171-2025
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| GB/T 15171-1994 | English | 70 |
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Test method for leaks in sealed flexible packages
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GB/T 15171-1994
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Basic data | Standard ID | GB/T 15171-2025 (GB/T15171-2025) | | Description (Translated English) | Test method for sealing performance of package | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A83 | | Classification of International Standard | 55.020 | | Word Count Estimation | 10,190 | | Date of Issue | 2025-08-01 | | Date of Implementation | 2026-02-01 | | Older Standard (superseded by this standard) | GB/T 15171-1994 | | Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China | GB/T 15171-2025: Test method for sealing performance of package---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/GBT15171-2025
ICS 55.020
CCSA83
National Standard of the People's Republic of China
Replaces GB/T 15171-1994
Test method for sealing performance of packaging
Released on August 1, 2025
Implementation on February 1, 2026
State Administration for Market Regulation
The National Standardization Administration issued
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 replaces GB/T 15171-1994 "Test method for sealing performance of flexible packages".
In addition to structural adjustments and editorial changes, the main technical changes are as follows.
--- Changed the applicable limits of the scope (see Chapter 1, Chapter 1 of the.1994 edition);
--- Added the terms and definitions of flexible packaging, rigid packaging, vacuum decay rate, target vacuum degree, and reference vacuum degree (see Chapter 3), and
The definition of sealing performance was changed (see 3.3, 3.2 of the.1994 edition), and the terms and definitions of flexible packaging were deleted (see
3.1);
--- Changed the test principle (see Chapter 4, Chapter 4 of the.1994 edition);
--- Deleted Method 2 (see 4.2, 8.2, 9.2 of the.1994 edition);
--- Added vacuum decay method (see 4.2, 6.2, 7.2, 8.2, 9.2);
--- Changed the content of the instrument (see Chapter 6, 5.1 of the.1994 edition), added the instrument structure diagram and transparent porous pressure plate (see
6.1.1, 6.1.5), the specimen grip has been deleted (see 5.2 of the.1994 edition);
--- Changed the test water requirements (see 8.1.1,.1994 edition 8.1.1); added the test water treatment steps (see 8.1.2); deleted
In addition to the requirements for the pressure difference between the inside and outside of the specimen (see 8.1.2 of the.1994 edition);
--- Changed the description of the test results of Method 1 (see 9.1, 9.1 of the.1994 edition);
--- Changed the content of the test report (see Chapter 10, Chapter 10 of the.1994 edition).
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 is proposed and coordinated by the National Technical Committee for Standardization of Packaging (SAC/TC49).
This document was drafted by. Shandong Product Quality Inspection Institute, Jinan Languang Electromechanical Technology Co., Ltd., Linyi Jinluo Wenrui Food Co., Ltd.
Co., Ltd., Zhangzhou Pien Tze Huang Pharmaceutical Co., Ltd., Xiamen Jindewei Packaging Co., Ltd., Shenghui New Materials Co., Ltd., Jinan Sanquan
Zhongshi Experimental Instrument Co., Ltd., Guangzhou Biaoji Packaging Equipment Co., Ltd., Shandong University, Hebei Shangdong Packaging Technology Co., Ltd., Shandong Xiwang
Food Co., Ltd., Laiyang Luhua Packaging Industry Co., Ltd., Yuncheng Guosen Color Printing Co., Ltd., Guangzhou Saijiweili Technology Co., Ltd.,
Shandong Xingmei Packaging Technology Co., Ltd., Shandong Yaxin Plastic Packaging Co., Ltd., Dawn Zhou's (Qingdao) Composite Packaging Materials Co., Ltd.,
Qingdao Hengxin Plastic Co., Ltd., Zhejiang Xingguan Packaging Materials Co., Ltd., Jinan Haoke Instrument Co., Ltd., Anhui Zijin New Materials Technology Co., Ltd.
Co., Ltd., Shandong Yongju Pharmaceutical Technology Co., Ltd., Shandong Liman Packaging and Printing Co., Ltd., Xiamen Changsu Industrial Co., Ltd.,
Gaolier (Tianjin) Packaging Co., Ltd., Chongqing Fuling Sanhai Lanling Co., Ltd., Haining Fangsheng Packaging Materials Co., Ltd., Ningbo
Joy Smart Technology Co., Ltd., Huizhou Lianxing Color Printing and Packaging Co., Ltd., Hunan University of Technology, Zhejiang Yuehai Packaging New Materials Co., Ltd.
Company, Guangzhou Natural Kingdom Biotechnology Co., Ltd., Qingdao Hyde Packaging Co., Ltd., Guangdong Guanhao New Materials R&D Co., Ltd.,
Hangzhou Shencai New Materials Industry Co., Ltd.
The main drafters of this document are. Xu Chao, Cui Jiwei, Sun Xiaochen, Zhang Wei, Wu Yanfeng, Guo Feng, Hao Wenjing, Zhang Zhili, Chen Xi, Yao Xianqi, Jiang Chuanxing,
Wang Jing, Chen Jing, Fan Wenchun, Chang Haichao, He Xiaochan, Sun Shuhua, Yao Yuxiang, Wang Canjun, Zhu Guoqiang, Yang Huanxin, Zhai Yulin, Huo Yanjun, Li Shuangli,
Jiang Peng, Huang Zhiyong, Wang Fengyu, Qiu Kai, Chu Jingjing, Zhao Jing, Kong Xiangkun, Li Xiaoming, Zheng Wei, Xie Fujiang, Wang Fei, Wang Qin, Xie Hongxue, Luo Lilian,
Yang Yunlong, Zhang Yongming, Huang Haifeng, Tang Peipei, Kui Minghong, Quan Jun.
The previous versions of this document and the documents it replaces are as follows.
---First published in.1994 as GB/T 15171-1994;
---This is the first revision.
Test method for sealing performance of packaging
1 Scope
This document describes two test methods for the sealing performance of packages - the underwater bubble method and the vacuum decay method.
The test principle, specimen, instrument, specimen state adjustment and test conditions, test steps, test results and test report of the method.
This document is applicable to non-vacuum packages and also to the sealing performance test of non-vacuum sealed packages that do not contain contents.
2 Normative references
This document has no normative references.
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
flexible packaging
A packaging whose shape can be changed after filling or taking out the contents.
[Source. GB/T 4122.1-2008, 2.8, with modifications]
3.2
rigid package
A package whose shape does not change substantially after filling or taking out the contents.
[Source. GB/T 4122.1-2008, 2.7, modified]
3.3
Sealing performance sealingperformance
The property of a package that prevents the ingress of other substances or the escape of its contents.
3.4
Vacuum decay rate vacuum decay rate
Under a certain pressure difference, the degree of vacuum change per unit time.
Note. The unit is Pascal per second (Pa/s).
3.5
Target vacuum degreetargetvacuumdegree
The desired vacuum level.
Note. The unit is kilopascal (kPa).
3.6
After reaching the target vacuum, the lower limit of the vacuum maintained in the test chamber during the test equilibrium time.
Note. The unit is kilopascal (kPa).
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