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Testing method for intuitive and qualitative analysis of plastic degradation rate under artificially simulated marine environmental conditions
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Basic data
| Standard ID | GB/T 44468-2024 (GB/T44468-2024) |
| Description (Translated English) | Testing method for intuitive and qualitative analysis of plastic degradation rate under artificially simulated marine environmental conditions |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | G31 |
| Classification of International Standard | 83.080.01 |
| Word Count Estimation | 10,131 |
| Date of Issue | 2024-09-29 |
| Date of Implementation | 2025-04-01 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 44468-2024: Testing method for intuitive and qualitative analysis of plastic degradation rate under artificially simulated marine environmental conditions
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Testing method for intuitive and qualitative analysis of plastic degradation rate under artificially simulated marine environmental conditions
Plastic degradation under artificial simulated marine environment conditions
Rate intuitive and qualitative analysis methods
Testing method for intuitive and qualitative analysis of plastic degradation
rate under artificially simulated marine environmental conditions
ICS 83.080.01
CCS G31
National Standard of the People's Republic of China
Released on 2024-09-29
2025-04-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Foreword
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 is required.
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 Standardization of Bio-based Materials and Degradable Products (SAC/TC 380).
This document was drafted by. Beijing Technology and Business University, Zhejiang Hisun Biomaterials Co., Ltd., Shenzhen Zhengwang Environmental Protection New Materials Co., Ltd.
Co., Ltd., Fuling Technology Co., Ltd., Red Avenue Chemical (China) Co., Ltd., Hefei Hengxin Life Science and Technology Co., Ltd., Guangdong Chongxi
Environmental Protection Technology Co., Ltd., Ningbo Jialian Technology Co., Ltd., Yangzhou Huitong New Materials Co., Ltd., Chongqing Lianfa Plastic Technology Co., Ltd.
Co., Ltd., Beijing Microstructure Factory Biotechnology Co., Ltd., Yangzhou Huitong Technology Co., Ltd., Anhui Fengyuan Biotechnology Co., Ltd.
Company, Shanxi Huayang Biodegradable New Materials Co., Ltd., Anhui Huachi Environmental Protection Technology Co., Ltd., Huitong Beigong Biotechnology
(Beijing) Co., Ltd., Beijing Fengde Lanzhi Packaging Technology Co., Ltd., Yingkou Zhengda Industrial Co., Ltd., Sichuan University, Tsinghua University,
Ningbo Institute of Technology, Shenzhen Zhongjing Kelin Environmental Protection Plastic Technology Co., Ltd., Shenzhen Wandajie Environmental Protection New Materials Co., Ltd., Jiangxi Xuan
New Materials Co., Ltd., Beijing Yonghua Qingtian Technology Development Co., Ltd., Anhui Zhongcheng Huadao Degradable Materials Technology Co., Ltd., Zhangzhou Green
Plastic New Materials Co., Ltd., Shanghai Hema Network Technology Co., Ltd., Light Industry Plastic Processing Application Research Institute, Zhangzhou Jie'an Plastic Co., Ltd.
company.
The main drafters of this document are. Fu Ye, Diao Xiaoqian, Zhang Qian, Chen Zhiming, Liang Wei, Jiang Guilan, Zhang Jianhong, Zhao Yanchao, Zhang Fuxiang,
Wei Jie, Zhang Jiangang, Ji Chuanxia, Zhou Yigang, Shen Kunliang, Tong Mingquan, Zhou Jiushou, Xu Xuanming, Wang Chunqiu, Jiang Suchen, Xu Jingmei,
Zheng Weichun, Tian Guoqiang, Wu Gang, Guo Baohua, Qiu Dan, Kong Li, Wei Da, Wang Peng, Liu Yunqiao, Ai Rong, Xu Yanlong, Hu Kejie,
Li Ziyi and Liu Zhizhong.
Plastic degradation under artificial simulated marine environment conditions
Rate intuitive and qualitative analysis methods
1 Scope
This document describes a method for the intuitive and qualitative analysis of the degradation rate and extent of disintegration of plastic materials under artificial simulated marine environmental conditions.
This document is suitable for the rapid characterization of the propensity of plastic materials to degrade and disintegrate in the marine environment.
NOTE. The degradation tests specified in this document involve plastic material located at the interface between sandy sediment and seawater (a situation similar to the seafloor where most debris is
sinking, accumulating and degrading on the sea floor).
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.
in this document.
GB/T 11165-2005 Laboratory pH meter
GB/T 12763.4 Marine Survey Specification Part 4.Seawater Chemical Element Survey
GB/T 19811 Determination of the degree of disintegration of plastic materials under defined composting pilot conditions
GB/T 22592 General rules for determination of pH value of water treatment agents
GB/T 41639 Plastics Determination of the disintegration rate of plastic materials under laboratory-scale simulated composting conditions
GB/T 43289-2023 Plastics Determination of the decomposition rate and disintegration degree of plastic materials exposed to the marine environment matrix under laboratory conditions
Test method
HJ 501 Water quality - Determination of total organic carbon - Combustion oxidation - non-dispersive infrared absorption method
ISO 10390 Soil, treated biowaste and sludge - Determination of pH
Determination of pH
ISO 10694 Soil quality - Determination of organic carbon and total carbon after dry combustion (elemental analysis)
tion of organic and total carbon after dry combustion (elementary analysis)]
ISO 11261 Soil quality - Determination of total nitrogen - Modified Kiel method
nitrogen-Modified Kjeldahl method)
3 Terms and definitions
The terms and definitions defined in GB/T 43289-2023 apply to this document.
4 Principle
The test uses image analysis (photogrammetry) to analyze images of the test material to determine the relationship between the disintegration area and the total area.
The disintegration of the test material was determined by the area loss (%).
Disintegration of test specimens shall be determined and reported after 1 year of exposure at the sediment/seawater interface.
If the documentation is consistent, disintegration studies may be performed on other samples with exposure times less than or greater than 1 year.
Although the disintegration of the test material will continue to increase with the increase in exposure period, the extrapolation of disintegration beyond the maximum exposure period is invalid.
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