GB/T 42265-2022 (English Version) PDF

Standard No.: GB/T 42265-2022
Language: Chinese, Available in English version
Release Date: 2022
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 42265-2022

Scope: This document describes a method for testing the air purification performance of materials containing or having photocatalysts attached to their surfaces, usually semiconducting metal oxides such as titanium dioxide (TiO2) or other ceramic materials. In this test method, the sample is placed under ultraviolet light (UV-A) irradiation and continuously exposed to simulated polluted air. This document applies to different types and uses of panels, such as veneer, wood and other building materials. This document also applies to structured filter materials, such as honeycomb filter panels, knitted or non-woven fabrics. At the same time, it is suitable for plastics and paper materials such as composite ceramic microcrystals. This document does not apply to powdered or granular photocatalytic materials. This test method is generally applicable to the detection of air purification of photocatalytic materials, and is not applicable to the determination of other properties of photocatalytic materials, such as degradation of pollutants in water, self-cleaning, anti-fog or antibacterial, etc. This method only involves the removal of toluene.

GB/T 42265-2022 Referenced Document

ISO 10677 Fine ceramics (advanced ceramics, advanced technical ceramics) - Ultraviolet light source for testing semiconducting photocatalytic materials
ISO 4892-3 Plastics - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps
ISO 80000-1 Quantities and units - Part 1: General
ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories [Standard in French]

2022 GB/T 42265-2022 Test method for air-purification performance of photocatalytic materials—Removal of toluene