Specifications Determining softening point of bitumen and coal tar bitumen A: Standards: GB/T4507, ASTM D36, IP58 B: Application: Determining softening point of bitumen and coal tar bitumen C: Technical Features : 1. Steel ball : 9.53mm, 3.5±0.05g 2. Bracket: 2 holes 3. Beaker: 80ml 4. Heater power: 1000W (adjustable)