1) Detection method:
1) Ultraviolet irradiometer measurement: After the
UV Germicidal Lamp is turned on for 5 minutes, the UV irradiation meter with a measuring wavelength of 253.7 nm is placed at the center of the UV lamp under the vertical distance of 1 m. After the meter is stabilized, the data shown is The irradiance value for the
UVC Germidical Lamp.
2) Ultraviolet Intensity Irradiation Indicator Card Monitoring Method: After the UV Germicidal Lamp is turned on for 5 minutes, the indicator will be set to the vertical distance of 1m from the UV lamp, with the pattern side up and irradiated for 1 min (after ultraviolet irradiation, the middle photosensitive color patch changes from milky white To a different degree of lavender), observe the color of the indicated color block, compare it with a standard color block, and read out the irradiation intensity.
(2) Result determination: Ordinary 30W straight UV Germicidal Lamp, new lamp irradiation intensity ≥90μW/cm2 is qualified; in use UV lamp irradiation intensity ≥70μW/cm2 is qualified; 30W high intensity UV lamp irradiation intensity ≥180μW/cm2 is acceptable.
(3) Note: When measuring voltage 220V ± 5V, temperature 20 °C ~ 25 °C, relative humidity <60%, UV irradiation meter must be used within the validity period of the verification of the measurement department; indicating card should obtain sanitation permit approval document, and Use within the validity period.
