ISO 2431 Paints and varnishes — Determination of flow time by use of flow cups (ISO 2431:2011)
BS EN ISO 2431 and ASTM D5125 NO.3 Flow Cup
3 mm (0.12˝) Orifice diameter, 7 – 42cSt Viscosity, range 30-100 sec flow times
BS EN ISO 2431 and ASTM D5125 NO.4 Flow Cup
4mm (0.16˝) Orifice diameter, 35 – 135cSt Viscosity range, 30-100 sec. Flow times
BS EN ISO 2431 and ASTM D5125 NO.5 Flow Cup
5mm (0.20˝) Orifice diameter, 91 – 325cSt Viscosity range, 30-100 sec. Flow times
BS EN ISO 2431 and ASTM D5125 NO.6 Flow Cup
6mm (0.24˝) Orifice diameter, 188 – 684cSt Viscosity range, 30-100 sec. Flow times
BS EN ISO 2431 and ASTM D5125 NO.8 Flow Cup
8mm (0.31˝) Orifice diameter, 600 – 2000cSt Viscosity range, 30-100 sec. flow times