Mention official and unofficial evaluation test for tablets. Describe weight variation test.

Mention official and unofficial evaluation test for tablets. Describe weight variation test. 
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1 Answer

Answer :

Official test list:

1. Size and shape of tablet.

2. Appearance.

3. Content of active ingredient.

4. Uniformity of weight/weight variation test

5. Uniformity of content

6. Disintegration.

7. Dissolution.

Unofficial test list:

1. Hardness test.

2. Friability

Weight variation test:

Uniformity of weight: Weigh 20 tablets selected at random and determine their average weight. Not more than 2 of the individual weights may deviate from the average weight by more than the percentage deviation given in the table and none should deviate by more than twice that percentage.

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