1.Ultraviolet disinfection lamp - low pressure mercury lamp

- ultraviolet radiation efficiency : conversion efficiency of input electric power to UV sterilization effective radiation (%)

(range of low pressure mercury lamp below 65W is 10~23%)

- ultraviolet irradiance : UV germicidal effective radiation of per unit area (uW/cm2) (in 1m distance)

- ultraviolet flux maintenance rate and lifetime : attenuation of UV germicidal effective radiation with time

- ozone yield : the ratio of the amount of ozone produced per unit time to the power of the lamp (g/kw·h)

Irradiance : uW/cm2

Sterilization dose : uJ/cm2 = uW/cm2

The values in Table 1 are double-tube parameters, and the data of four-tube, multi-tube, square and ring lamps are assessed according to 90% of the values specified in the table.

Source : GB/T 19258-2012 UV Sterilization Lamp

Rating of single-ended UV lamp : 24W : 94 μW/c㎡, 36W : 147 μW/c㎡, 55W : 170 μW/c㎡ (source : GB 28235-2011 Safety and Hygiene standards of UV air sterilizers)

Ordinary straight line low pressure mercury UV disinfection lamp : >30W : ≥90μW/c㎡, >20W : ≥60μW/c㎡, 15W : ≥20μW/cm2 (source : Technical Specification for Disinfection)

High intensity UV disinfection lamp : 30W : >170μW/c㎡, 11W : >40μW/c㎡

Ordinary straight line low pressure mercury UV disinfection lamp : (30W) : ≥70μW/c㎡

High intensity UV disinfection lamp : ≥200μW/c㎡ (source : GB 15981-1995 evaluation method and standard of disinfection and sterilization effect)

- ultraviolet flux maintenance rate and lifetime : attenuation of UV germicidal effective radiation with time

Retention rate of 2000 hours ≥85 %

Average life is not less than 5000h, and the retention rate at the end of life is ≥65 % (source: GB/T 19258-2012 UV Sterilization Lamp)

The illuminance of a medium UV lamp (30W) shall be ≥ 70 μW/c㎡ (source : GB 15928-2012 Hospital Disinfection Health Standard)

Ultraviolet light (≥30W) irradiance reduced by 70 μW/cm2 for ≥1000h

Ultraviolet light (<30W) radiation reduced by 70% of the initial value for ≥1000h (source : Technical Specification for Disinfection)

ozone yield : the ratio of the amount of ozone produced per unit time to the power of the lamp (g/kw·h)

The initial ozone production rate of an ozone-free lamp should not be higher than 50mg/KW· h (source : GB/T 19258-2012 UV Sterilization Lamp)

Ozone production ＜1mg/h (source : Technical Specification for Disinfection)

The ozone concentration produced by low ozone UV lamp should not exceed 0.3 mg/m³

The ozone production disinfection device works in an environment where the ozone concentrate is ＜ 0.16 mg/m³ (source : GB 15928-2012 Hospital Disinfection Health Standard)

Others : the average maximum allowable ozone concentration for 1h is 0.1 mg/m³ (source : GB/T 18202-2000 Health Standard for Ozone in Indoor Air)

2.UV air sterilizer : cabinet / hanging / mobile : low ozone UV lamp

Ultraviolet disinfection (sterilization) lamp index requirements

Ultraviolet leakage : no more than 5 μW/c㎡ measured at 30cm

Ozone leakage : the average maximum allowable ozone concentration for 1h is 0.1 mg/m³

Circulating  air volume : not less than 10 times the applicable volume.

Applicable volume : not less than 30m3

(source : GB 28235-2011 Safety and hygiene standard for ultraviolet air sterilizers)

About the ultraviolet ray energy value and illumination measurement may choose the professional ultraviolet ray examination instrument.