T/BYXT 003.2-2023 Active Group standards

T/BYXT 003.2-2023 Rare earth antibacterial basic material Part 2: Composite antibacterial powder

Publish Date: 2023-07-06 Implement Date: 2023-07-06 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/BYXT 003.2-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Synthetic materials

ICS Name: Chemicals used for industrial and household disinfection

Publish Date: 2023-07-06

Implement Date: 2023-07-06

Scope

Scope: This document specifies the terms and definitions, technical requirements, test methods, inspection rules, packaging, marking, transportation, storage, evaluation, and labeling of rare earth composite antibacterial powders. This document applies to the preparation and processing of rare earth composite antibacterial powders. Main technical content: 1. Chemical composition: The chemical components of the product shall comply with the requirements of Table 2. Table 2: Chemical composition components Ce rare earth elements (in terms of oxide) Carrier elements (in terms of oxide) La-Ce mixture Pr Nd Sm Eu Zn Cu Ag Ti Zr Mass fraction/% ≥99% <1% <1% <1% <1% ≥96% ≤1% ≤1% ≤1% ≤1% 2. Safety requirements: The safety requirements of the product shall comply with the provisions of Table 3. Table 3: Safety requirements Items Skin allergy Mutagenicity Toxicity Result Negative Negative Non-toxic Test method OECD TG 406 OECD TG 471 GB/T 216033 3. Antibacterial requirements: The antibacterial requirements of the product shall comply with the provisions of Table 4. Table 4: Antibacterial requirements Item Antibacterial rate COVID-19 inhibition rate Antifungal grade Indicator ≥99% ≥99% 0 grade a Test bacteria and their numbers: Staphylococcus aureus (ATCC 6538), Escherichia coli (ATCC 8739), Candida albicans (ATCC 10231), Klebsiella pneumoniae (ATCC 4352), Pseudomonas aeruginosa (ATCC 9027), Helicobacter pylori (ATCC 700392). b Test viruses and their numbers: SARS-CoV-2 virus (WIVO4, GenBank: MN996528.1), Enterovirus 71 (EV71). c Test bacteria and their numbers: Aspergillus niger (CGMCC 3.5487), Aspergillus flavus (CGMCC 3.3950), Penicillium verrucosum (CGMCC 3.2757), Pseudallescheria boydii (CGMCC 3.4253), Penicillium aurantiacum (CGMCC 3.2913), Trichoderma viride (CGMCC 3.2941), Rhizopus oryzae (CGMCC 3.837), Alternaria alternata (CGMCC 3.4255)