Brand：
$551.00
SE
CHINA NBC-5641 Dirt Count Tester
270 * 270Mm, effective area of 0.0625 m2, can be swirled/spun 360 °
Light source 20w fluorescent lamp, irradiation angle 60 °, swirl/spin table 270mm × 270mm, effective area of 0.0625m2, swirl/spin 360 °, standard dust picture 0.05~ 5.0 (mm2), accuracy 0.1 seconds
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