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Ultraviolet Disinfection and Sterilization Product Index Requirements

2020-08-20 11:58:51

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


Standard power range

(W)

UV Radiation Efficiency of Lamps

Double-ended lamp

Single-ended lamp

Self-ballasted lamp

<9

12

12

10.2

9~17

18

16

13.6

>=18

23

20

17


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.


Standard Power / W

4

6

8

13

15

18

30

36

No less than 93% of the rated value

Irradiance of double-ended UV lamp

11

17

22

35

50

62

100

135


Standard Power / W

7

9

11

18

24

36

55 (TS)

No less than 93% of the rated value

Irradiance of single-ended UV lamp

18

28

40

52

100

150

185

Note : The median values in Table 2 and Table 3 are the parameters of two-pipe lamps, while the data of four-pipe, multi-pipe, square and ring lamps are to be determined.


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.


Portable UV Light Meter EIT POWER PUCK II

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