Consistency of Carboxymethylcellulose Sodium Paste (U.S. Pharmacopeia)
The penetrometer PNR 12 allows a rating of the plasticity or consistency of carboxymethylcellulose sodium paste containing products.
This application report gives an example on how to measure the consistency of carboxymethylcellulose sodium paste with Anton Paar’s penetrometer PNR 12.
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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