Ubbelohde viscometer 30-300mm²/s calibrated

Ubbelohde viscometer, DIN type with printed constant according to ISO/DIN 3105, DIN 51502, BS 188, KFT 60-100, No. IIc, inner Ø 1.50 mm, K 0.3, measuring range 30-300 mm²/s, calibrated, four-legged