Ichemco Internal Test Methods
Softening Point, Ring & Ball
Id: | 4 |
Measure unit: | °C |
Procedure: | Put the rings on a siliconed paper sheet and pour the melt product into each ring, trying to avoid air bubbles .
Let the product cool and became solid, levelling the surface with a blade, then let at room temperature for 30 minutes.
Put the rings on the structure and the structure into the glycerol bath.
The rings must be at 5 cm below the glycerol level
Insert the thermometer in the bath, start stirring (speed 500 rpm) and heating. At 30 °C put the steel spheres in the middle of the rings and wait for some minutes (spheres conditioning).
Then start heating (temperature gradient = 5 °C/min, check with a cronometer).
Read the temperature when the spheres reach the bottom of the structure. |
Remarks: | |
Instruments: | Brass rings and structure for R&B measurement
600cc becker filled with glycerol
Stirrer
Siliconed paper, blade |
Recordings: | Record the measured temperatures together with sample data |
External references: | ASTM D36 |
Rev. 4 - 05/10/2017