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UV protection strength test
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UV protection can be tested for sunglasses, sun hats, clothing, sun umbrellas, automotive glass films, sunscreens, etc.
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Put the sensing area in the sun for 7-10 seconds, and judge the UV intensity by the color change.
1) Put the sensor area of this card under the sun, and judge the intensity of ultraviolet rays by the color change
2) Cover the test object on half of the card and expose it to sunlight for about 7-10 seconds. The degree of UV blocking can be judged from the contrast of the color depth of the sensing area.
3) Expose the sensor card to the sun for about 7-10 seconds, and then put it under the glass in the car. The degree of UV blocking can be judged from the color contrast of the sensing area.
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