美女脱了内裤打开腿让男人戳,亚洲国产区男人本色在线观看,中文字幕久精品免费视频,久久99热精品免费观看牛牛

×

YG912E ultraviolet ray tester for textile

Video
Gallery
360°Show
×
×
×
Applicable scope
Test principles and standards
Instrument characteristics
Configuration list
A special instrument used to test the UV transmittance and anti ultraviolet properties of textiles can be used to directly test the UV protection coefficient UPF of textiles.
GB/T 18830、AATCC 183、AS/NZS 4399、BS 7914、PREN 13758
1. The light source uses the deuterium lamp, the optical path adopts the high-precision ultraviolet monochromator and the ultraviolet integral ball, and the automatic scanning of the wavelength is carried out by the step motor.
2. Using ultraviolet photomultiplier, the test range is wide and the precision of the test is high.
3. Full computer control, automatic data processing, a variety of graphics, report statistics, analysis, storage, output.