RING AND BALL APPARATUS (ELECTRICAL) IS: 1205 - 1985, IP : 58/63
The apparatus is used to determine softening point of bitumen. Ring and ball apparatus is used to determine softening point. It is that temperature at which a sample of bituminous material loaded by a 9.5mm dia-steel ball, drops at the distance of 25mm.
The apparatus consists of steel braket with a sliding plate support. That supports has two holes of 10mm dia on which a Ring and Ball guide can be kept. A central hole on this plate is for inserting thermometer. Supplied with a glass beaker approximate 8.5c.m. I.D., 12 cm high and a hand stirrer and nos. 9.5mm dia steel balls.
It is supplied with a thermostatic hot plate. Suitable for operation on 230 V.A.C. Accessories : Thermometer IP60c range-2 degree celcious x 0.2 degree celcious.Thermometer IP61c range-30 degree celcious to 300 degree celcious x 0.2 degree celcious, Electrical Stirrer with stand and blades to gently stir the water in the beaker. Suitable of operarion on 230 V A..C.