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Testing method of the abrasivity value of toothpastes
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Basic data
| Standard ID | GB/T 35832-2025 (GB/T35832-2025) |
| Description (Translated English) | Testing method of the abrasivity value of toothpastes |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | Y43 |
| Classification of International Standard | 71.100.70 |
| Word Count Estimation | 7,744 |
| Date of Issue | 2025-06-30 |
| Date of Implementation | 2026-01-01 |
| Older Standard (superseded by this standard) | GB/T 35832-2018 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 35832-2025: Testing method of the abrasivity value of toothpastes
---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/GBT35832-2025
ICS 71.100.40
CCSY43
National Standard of the People's Republic of China
Replaces GB/T 35832-2018
Toothpaste friction value test method
Released on June 30, 2025
Implementation on January 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 35832-2018 "Test method for toothpaste friction value". Compared with GB/T 35832-2018, except for the structural adjustment
Besides the editorial changes, the main technical changes are as follows.
a) The scope of application has been changed (see Chapter 1, Chapter 1 of the.2018 edition);
b) Deleted “PMMA abrasive block” and “standard toothbrush” from “reagents or materials” (see 4.3 and 4.4 of the.2018 edition);
c) The requirements for the models of “brush grinder” and “surface roughness tester” have been changed (see 6.1, 6.2, and 5.1, 5.2 of the.2018 edition);
d) Added “polymethyl methacrylate (PMMA) grinding blocks” and “toothbrushes” to “instruments and equipment” (see 6.4 and 6.5);
e) Changed the requirements for “brushing speed” in “pre-brushing test” and “formal brushing test” (see 7.2.1, 7.2.2,.2018 edition).
6.2.1, 6.2.2);
f) The appendices “PMMA abrasive blocks” and “standard toothbrushes” have been deleted (see Appendix A and Appendix B of the.2018 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 by the China Light Industry Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Oral Care Products (SAC/TC492).
This document was drafted by. Shanghai MAXAM Daily Chemical Co., Ltd., Heilongjiang Light Industry Science Research Institute, Jinsanjiang (Zhaoqing) Silicon Materials Co., Ltd.
Co., Ltd., Suzhou Qingxin Health Technology Co., Ltd., Liuzhou Liangmianzhen Co., Ltd., Chongqing Dengkang Oral Care Co., Ltd.,
Guangzhou Shuke Industrial Co., Ltd., Fujian Aijieli Daily Chemical Co., Ltd., Haolai Chemical (Zhongshan) Co., Ltd., Guangzhou Liby Enterprise Group Co., Ltd.
Company, Jiangxi Chengzhi Daily Chemical Co., Ltd., Nice Group Co., Ltd., Zhongshan Duomei Chemical Co., Ltd., Shenzhen Xiaokuo Technology Co., Ltd.
Company, Hangzhou Namei Zhikang Technology Co., Ltd., Claude Cosmetics Co., Ltd., Hangzhou Island Xingqing Biotechnology Co., Ltd., Kangbo
Daily Chemical Group Co., Ltd., Guangdong Baiyun Toothpaste Co., Ltd. (Guangzhou), Huai'an Zongheng Biotechnology Co., Ltd. Huaiyin Branch, Yantai Xinshi
Dai Health Industry Daily Chemical Co., Ltd. and Guangzhou Quality Supervision and Inspection Institute.
The main drafters of this document are. Sun Dongfang, Shi Yilei, Zheng Wei, Huang Dan, Mao Jianlin, Yang Weihao, Liu Li, Liu Wenyu, Chen Minshan, Chen Wanjin,
He Qiying, Wang Ting, Xu Haiyan, Peng Yan, Meng Qingrui, Yin Kuo, Fan Yu, Li Yang, Ding Yun, Wang Chunmei, Li Yiping, Da Chengzhu, Wei Xing, Li Xinyu,
Wang Xianwei, Han Jindou, Zhang Xiuying, and Ren Zhenxue.
The previous versions of this document and the documents it replaces are as follows.
---First published in.2018 as GB/T 35832-2018;
---This is the first revision.
Toothpaste friction value test method
1 Scope
This document describes the test method for the abrasiveness of toothpaste.
This document is applicable to the comparison of the abrasive properties of toothpastes using hydrated silica (silicon dioxide) as an abrasive.
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 to
This document.
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GB/T 7134-2008 Cast industrial plexiglass sheets
GB/T 19342 General requirements and test methods for manual toothbrushes
GB/T 33523.601 Geometrical Product Specifications (GPS) - Surface Structure Area Method - Part 601.Contact (Stylus) Instruments
Nominal characteristics
3 Terms and Definitions
There are no terms or definitions that require definition in this document.
4 Principles
A brush grinding instrument with full controllable brushing load is used as a brush grinding instrument, a toothbrush and a polymethyl methacrylate (PMMA) grinding block
The toothpaste samples were tested in vitro as test materials to replace teeth under certain brushing speed and brushing load conditions.
After the brushing test, the surface roughness Ra of PMMA grinding blocks was measured with a surface roughness meter. The Ra values of 8 PMMA grinding blocks after the brushing test were
The average value of the values was used to evaluate the abrasiveness of the toothpaste sample on the PMMA abrasive block.
5 Reagents or materials
5.1 Water
The water used in this document complies with the third-grade water specified in GB/T 6682.
5.2 Toothpaste slurry
Weigh 600g of toothpaste sample (accurate to 0.01g) in a.2000mL beaker, dissolve it in 960g of water and stir until the toothpaste is dispersed.
The mass ratio of toothpaste sample to water is 1.1.6.
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