Method of quality assurance in the manufacture of tablets

Details Method of quality assurance in the manufacture of tablets Method of quality assurance in the manufacture of tablets

1989-10-12

1991-03-12

Simmons, David A.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

Measuring a weight or volume

264123, 425140, 425354, B29C 4308, B30B 1108

Patent

active

049991515

ABSTRACT:
A method for quality assurance in the manufacture of tablets. Tablet samples consisting of a plurality of tablets are taken whose actual weight is compared with their nominal weight, so that the tabletting machine is subsequently adjusted according to the deviation in order to adjust the weight of the tablets to the nominal weight. If the sample of tablets contains one or several tablets which, as so-called error tablets, show significant deviation from the nominal weight due to flawed manufacture, inaccuracy of the result so obtained is avoided if prior to adjustment of the machine, the weights of the individual sample tablets are measured and compared with one another. If it is found that the sample contains tablets with significant deviation from their nominal weight, such tablets may be taken into account in the statistical analysis by corrective computation.

REFERENCES:
patent: 3255716 (1966-06-01), Knoechel et al.
patent: 3910737 (1975-10-01), Shimada et al.
patent: 4030868 (1977-06-01), Williams
patent: 4452579 (1984-06-01), Janson
CRC Handbook of Tables for Probability and Statistics, pp. 333-337.

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