RING AND BALL APPARATUS (SOFTENING POINT TEST):
AS PER IS: 1205 - 1985, IP: 58/63 & ASTM D 36
This 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 9.5 mm dia-steel ball, drops at a distance of 25 mm.
The apparatus consists of steel bracket with a sliding plate support.
That support has two holes of 10 mm 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 8.5 cm I.D., 12 cm high and a hand stirrer & 2 nos. 9.5 mm dia steel balls.
Thermometer IP 60 c range -2°C to 80°C x 0.2°C,
Thermometer IP 61 c range 30°C to 300°C x 0.5°C,