How to detect ultraviolet lamp whether qualified?
( With illuminance meter determination) For the next test. ( 3) Exposure test, the determination of the rack to illuminate indicator card color area. Every 10 indicator card as a group, each group of irradiation for 1 min, the intensity of each light 3 groups ( A total of 30
indicator card) 。 ( 4) After irradiation, to illuminate the instructions of the card immediately with the naked eye observation, compare the color change area color piece with the color of the corresponding standard color piece. ( 5) With illuminance meter determination of ultraviolet radiation intensity at the same time, in order to check with the instruction card. ( 6) Color piece in the color area and the standard color piece, as well as instruction card test results and the accuracy of determination results are 90% or higher illuminance meter, can be judged to be qualified.
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