An International Sugar Scale (ISS) reading out to 0.1°S with ±150°S range is provided is provided in addition to the ±90° arc scale, where 34.616° arc = 100°S for 26.000 g surcose in 100 ml solution measured in 200 mm sample cell with yellow sodium light of 589 nm effective wavelength at 20°C. The Saccharimeter includes one 200 mm long 'grab' sample cell with a central funnel for ease of use.