T/ZSA 82-2021 Abolished Group standards

T/ZSA 82-2021 UVA LED module technology specification for photocatalytic application

Publish Date: 2021-10-14 Implement Date: 2021-10-15 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/ZSA 82-2021

Standard Type: Group standards

Standard Status: Abolished

is_force_gb: no

CCS Name: Electronic components and information technology

ICS Name: Optoelectronics, laser equipment

Publish Date: 2021-10-14

Implement Date: 2021-10-15

Scope

Scope: This document specifies the technical requirements for UVA LED modules used in photocatalysis, including terms and definitions, technical requirements, test methods, marking, packaging, and transportation. This document applies to UVA LED modules with a peak wavelength of less than 370 nm used as light sources in photocatalytic purification applications. This document applies to air and water purification, and the application scenarios include but are not limited to households, commercial buildings, industries, hospitals, etc. Main technical content: Photocatalysis technology refers to the use of materials with photocatalytic activity to achieve certain purposes by inducing photoxidation-reduction reactions under light irradiation. TiO2 is one of the most widely used semiconductor catalysts, which has the advantages of suitable semiconductor bandgap (about 3.0 eV, which can be activated by light sources below 385 nm), high photocatalytic efficiency, good chemical stability, low cost, non-toxicity, and easy availability of raw materials, and is widely used in air purification, water purification, wastewater treatment, and antibacterial materials. Existing international and national standards for photocatalysis light sources only regulate mercury ultraviolet light sources. Compared with traditional mercury ultraviolet light sources, UV LEDs have the advantages of energy saving and environmental protection, long lifespan, fast startup speed, controllable radiation intensity, small size and flexible industrial design, good light emission directionality, and customizable spectrum. At present, the external quantum efficiency of UVA LEDs for photocatalytic purification applications with a peak wavelength of 370 nm has reached about 40%, and they have already met the requirements for replacing traditional mercury ultraviolet light sources in photocatalysis applications. It is hoped that through the formulation of this document, the integration of the two technical fi