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GB/T 33796-2025: General technical requirement of thermoplastic starch
Status: Valid GB/T 33796: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 33796-2025 | English | 199 |
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General technical requirement of thermoplastic starch
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GB/T 33796-2025
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| GB/T 33796-2017 | English | 139 |
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General requirement of thermoplastic starch
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GB/T 33796-2017
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PDF similar to GB/T 33796-2025
Basic data | Standard ID | GB/T 33796-2025 (GB/T33796-2025) | | Description (Translated English) | General technical requirement of thermoplastic starch | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Y28 | | Classification of International Standard | 83.080 | | Word Count Estimation | 10,162 | | Date of Issue | 2025-03-28 | | Date of Implementation | 10/1/2025 | | Older Standard (superseded by this standard) | GB/T 33796-2017 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 33796-2025: General technical requirement of thermoplastic starch---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.
ICS 83.080
CCSY28
National Standard of the People's Republic of China
Replaces GB/T 33796-2017
General technical requirements for thermoplastic starch
Released on 2025-03-28
2025-10-01 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.
This document replaces GB/T 33796-2017 "General technical requirements for thermoplastic starch". Compared with GB/T 33796-2017, except for the structure
In addition to adjustments and editorial changes, the main technical changes are as follows.
a) The technical requirements for “Appearance” have been changed (see 4.1, 4.1 and Table 1 of the.2017 edition);
b) The requirements and test methods for “biodegradability” have been changed (see 4.3 and 5.7, 4.3 and 5.7 of the.2017 edition);
c) The test method for "starch content" has been deleted (see 5.8 of the.2017 edition);
d) Added requirements for “biodegradability labeling” (see Chapter 7);
e) The requirements for “storage period” have been changed (see 8.3, 8.3 of the.2017 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 was proposed and coordinated by the National Technical Committee for Standardization of Bio-based Materials and Degradable Products (SAC/TC380).
This document was drafted by. Wuhan Huali Environmental Protection Industry Co., Ltd., Shenzhen Hongcai New Materials Technology Co., Ltd., Zhejiang Huafa Ecological Science and Technology Co., Ltd.
Technology Co., Ltd., Zhejiang Green Grass Ecological Technology Co., Ltd., Changzhou Longjun Tianchun Environmental Protection Technology Co., Ltd., Sichuan University, Shenzhen Zhongjing
Colin Environmental Plastic Technology Co., Ltd., Shouguang Jinyuandong Modified Starch Co., Ltd., Huitong Beigong Biotechnology (Beijing) Co., Ltd., Yangzhou
Huitong New Materials Co., Ltd., Shenzhen Wandajie Environmental Protection New Materials Co., Ltd., Chongqing Lianfa Plastic Technology Co., Ltd., Anhui
Huachi Environmental Protection Technology Co., Ltd., Hefei Hengxin Life Technology Co., Ltd., Ningbo Jialian Technology Co., Ltd., Fuling Technology Co., Ltd.
Co., Ltd., Guangdong Chongxi Environmental Protection Technology Co., Ltd., Shenzhen Zhengwang Environmental Protection New Materials Co., Ltd., Henan Longdu Tianren Biomaterials Co., Ltd.
Company, Sinopec (Dalian) Petrochemical Research Institute Co., Ltd., Beijing Technology and Business University, Beijing Fengde Lanzhi Packaging Technology Co., Ltd., Jiangxi Xuan
Pin New Materials Co., Ltd., Beijing Yonghua Qingtian Technology Development Co., Ltd., and Yingkou Zhengda Industrial Co., Ltd.
The main drafters of this document are. Bai Juan, Zhang Libin, Yang Hong, Sun Yuanzheng, Lü Shafeng, Mi Kejun, Ye Lei, Tian Guoqiang, Wu Gang, Wang Yuzhong, Kong Li,
Gao Shijun, Wu Zehua, Shen Kunliang, Jiang Suchen, Wei Jie, Zhou Jiushou, Wang Chunqiu, Yan Deping, Wang Chunxia, Zhang Fuxiang, Wang Xiong, Hu Xinfu, Tao Yang,
Wei Da, Zhang Jianhong, Zhang Kai, Mao Bin, Zhou Feng, Liao Sha, Diao Xiaoqian, Fu Ye, Xu Jingmei, Wang Peng, Liu Yunqiao, and Zheng Weichun.
The previous versions of this document and the documents it replaces are as follows.
---First published in.2017 as GB/T 33796-2017;
---This is the first revision.
General technical requirements for thermoplastic starch
1 Scope
This document defines the terms and definitions of thermoplastic starch, stipulates its technical requirements, inspection rules, marking, packaging, transportation and storage, and describes
The corresponding test methods are described.
This document is applicable to the production of various natural starches as the main raw materials, which are obtained through physical modification and/or chemical modification.
Thermoplastic starch for plastic materials and products.
2 Normative references
The contents of the following documents constitute 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 1033.1 Plastics - Determination of density of non-cellular plastics - Part 1.Immersion method, liquid pycnometer method and titration method
GB/T 2547 Plastics Sampling Method
GB/T 3682.2 Plastics - Determination of melt mass flow rate (MFR) and melt volume flow rate (MVR) of thermoplastics
Part 2.Test methods for materials sensitive to time-temperature history and/or humidity
GB/T 6284 General method for determination of moisture in chemical products - Loss on drying method
GB/T 41010-2021 Degradation performance and labeling requirements for biodegradable plastics and products
QB/T 4012-2010 Starch-based plastics
SH/T 1541.1 Test method for appearance of plastic particles Part 1.Visual inspection method
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Thermoplastic starch
Using natural starch as the main raw material, the thermoplastic processing
A type of material.
4 Technical requirements
4.1 Appearance
The color is uniform, without black particles, and the number of colored particles is ≤40/kg.
4.2 Physical performance requirements
The physical property requirements of thermoplastic starch should comply with the requirements in Table 1.
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