PQ of 8-trays vacuum oven

what are the tests needed to find the composition and identity of the graules which contain glucose,lactose and magnesium sterate? Also, the requirement of the final granules shld have a 2wt% moisture content instead of the initial 5wt%. So is gravemetric method suitable to determine the moisture content of the granules?

You can utilize both methods gravemetric as well as wet analysis methods.