GB/T 41483-2022 in English

This standard applies to special equipment that identifies liquid hazardous chemicals through dielectric constant detection technology. The technology has evolved from single dielectric detection to the integration of multi-parameter analysis such as thermal conductivity and density.

1. Dielectric constant detection principle

Dangerous goods identification is achieved by measuring the relative dielectric constant (εr) of liquid substances. The standard clearly requires that Class I equipment must complete non-metallic container detection within 2 seconds.

2. Multimodal detection technology

High-level equipment needs to integrate thermal conductivity (λ) and density (ρ) detection modules to improve the penetration ability of metal containers. For example, Class III equipment needs to detect 0.2mm thick tinplate containers.

1. Environmental adaptability configuration

According to the requirements of Article 5.8 of the standard, the equipment needs to work stably in an environment of 0-40℃. In northern regions, special attention should be paid to the attenuation of metal container detection performance under low temperature conditions.

2. Electromagnetic compatibility design

According to the requirements of the GB/T17626 series of standards, the electromagnetic radiation within a radius of 10cm of the equipment needs to be controlled within the GB8702-2014 limit. It is recommended to adopt a multi-layer shielding structure design.