... has been designed to allow microprocessor control of the heat deflection & softening point testing ... range to 300oC (temperature tests in excess of 250oC require the nitrogen blanket option), HDT ... can also be entered), Adjustable HDT span supports of 64mm or 100mm, Deflection / Penetration resolution +/- ... & B, BS 2782: Part 1: Method 120 A to E, ASTM D5945, ASTM D5944, ASTM D1525 HDT/Vicat ...