Content Handbook O

Outline of method

The formulation is dissolved in Standard Water in a graduated 250 ml cylinder. After 15 inversions of the test cylinder and a standing time of 5 min, the degree of dissolution is determined by pouring the content of the test cylinder through a 75 μm sieve. Any residue on the sieve is quantified. The stability of the solution is checked by allowing the filtrate to stand for a period of 24 h and filtering it again through a 75 μm sieve. Again, any residue on the sieve is quantified.

Scope

The method is intended for the determination of the degree of dissolution and the solution stability of solid, water soluble formulations.