Observation No.  Assay of Desogestrel (%)  Assay of Ethinyloestradiol (%)
1. 99.3 99.5
2. 99.5 99.2
3. 99.7 99.7
4. 99.3 101.1
5. 99.3 100.6
6. 98.7 101.6
Assay 99.3 100.3
Minimum 98.7 99.2
Maximum 99.7 101.6
% RSD 0.3 0.9
Table 4: Method precision data.