Consistency of Lipstick with Automatic Surface Detection
The Penetrometer PNR 12 is suitable for consistency determination in the cosmetics industry. Various test kits are available for different cosmetic products. The choice of the accessories depends on the consistency and conductivity of the sample.
This Application Report describes the measurement of lipstick consistency with Anton Paar’s penetrometer PNR 12 and gives an example on how to measure lipstick mass. The measurement is described from preparation to evaluation.
The PNR 12 measures the resistance a material provides against being pierced by a specifically shaped test body. Therefore, a needle shaped or conical test body is precisely lowered to the surface of the material under test. It will sink into the sample by its own weight for a fixed period of time. This allows a rating of the plasticity or consistency.
Due to its versatility and easy handling the gravity penetrometer has gained a wide scope of application.
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