Using our ”Pump Actuation and Weight Station” (PAWS fra InnovaSystems, Inc.) we are able to perform automated actuation tests on nasal sprays with reproducable actuation power and actuation period. Parameters such as actuation power, actuation period, the number of primes of the spray as well as lag period between actuations may be adjusted in accordance with the requirements of the customer.
The equipment is connected to a weighing station which weighs and records the nasal spray before and after each actuation. From these readings, the mean dose weight as well as the mass variation may be determined. If these results are combined with an assay it can be determined whether the product complies with the demands of pharmacopoeias with respect to middle dose and the uniformity of dosage units.