T/ZZB 2251-2021
Cotton sand (English Version)
- Standard No.
- T/ZZB 2251-2021
- Language
- Chinese, Available in English version
- Release Date
- 2021
- Published By
- Group Standards of the People's Republic of China
- Latest
- T/ZZB 2251-2021
- Scope
- This document stipulates the terms and definitions, basic requirements, technical requirements, test methods, inspection rules, labeling, packaging, transportation and storage and quality commitment of cotton sand. This document applies to reusable, stretchable, and shapeable cotton sand (also known as rally sand and snowflake sand) that uses silica as the main raw material and is used for children's work and school teaching. This document is not suitable for use by people 36 months and younger.
T/ZZB 2251-2021 history
- 2021 T/ZZB 2251-2021 Cotton sand
