This video explains the determination of softening point of lipsticks.

As per Indian standard 9875 : 1990, Lipstick should have softening point of minimum 50 degree Celsius.

Procedure is as follows:

1.Boil water in stirrer.

2.Cut small portion of lipstick and place in Test tube.

3.Immerse thermometer in the test tube touching the lipstick.

4.Place the set up in water bath

5.Check the temperature where lipstick starts to melt.

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