Ubbelohde viscometer 1.2-10mm²/s calibrated

Ubbelohde viscometer, DIN type with printed constant according to ISO/DIN 3105, DIN 51502, BS 188, KFT 60-100, No. I, inner Ø 0.63 mm, K 0.01, measuring range 1.2-10 mm²/s, calibrated, four-legged