Consistency of White Petrolatum (U.S. Pharmacopeia)
The penetrometer PNR 12 is suitable for consistency measurements required in the pharmaceutical industry. Various test kits are available for different products and standards like the official U.S. Pharmacopeia.
This Application Report gives an example on how to measure white petrolatum with Anton Paar’s PNR 12. 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.
Anton Paar has the most suitable test kits for each type of measuring task. These include tests according to many standardized methods and cover a wide range of applications for the petrochemical field, chemical, pharmaceutical, cosmetics and food industries.
Due to its versatility and easy handling the gravity penetrometer has gained a wide scope of application.
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