Using the ring and ball method, the softening point of bitumen and bituminous binders is determined in the temperature range of 28 °C to 150 °C.
SOFTMATIC - B070M Automatic Ring and Ball Cutter for Bitumen
NS-EN 1427 (2007) : Bitumen and Bituminous Binders – Determination of Softening Point – Ring and Ball Method
NS-EN 12594 (2015) : Bitumen and bituminous binders – Preparation of samples
NS-EN 58 (2012): Bitumen and bituminous binders - Sampling of binders
