July 1, 2020

UV sterilization requirements

Since the germicidal lamp has been used for a long time, the light source will occur, so it is necessary to regularly detect the intensity of the germicidal lamp. The 254nm UV irradiator is specially designed to detect the intensity of germicidal lamps. Linshang UV light intensity meter can be used to measure the ultraviolet irradiation intensity of the UV lamp. There are regulations for the detection of germicidal lamps:
WS/T 367-2012 "Technical Specifications for Disinfection of Institutions" P15, Appendix A.3 Monitoring of the effect of ultraviolet disinfection.The 2009 version of "*** Disinfection Technical Specification" P9, 2.3 UV disinfection.Ultraviolet germicidal lamp GB19258-2003 P4, rated value of ultraviolet radiation illuminance.
The above standards specify the following:1. Only 5 minutes after turning on the UV lamp, the UV intensity of the lamp can be measured more stably.2. The instrument is placed 1m vertically under the UV lamp tube for measurement.3. The new ordinary 30W straight tube type ultraviolet lamp, the irradiation intensity is greater than 100uW/cm2 is qualified.4. The irradiation intensity of the ultraviolet lamp in use must be greater than 70uW/cm2.5. The peak wavelength of the ultraviolet sterilization lamp is 253.7nm, and the ultraviolet lamp of this wavelength (UVC) has the sterilization function.6. Different power UV lamps have different irradiation ratings.