Syrup Process Validation batch

What must be the PV batch size to be taken for syrup as per WHO TRS guidelines ?
The commercial batch will be of 300 lt.

@Reshma Process validation should be done on commercial batchs.

Thank you for the reply.

That means for liquids the process validation can be taken directly on commercial batch.
But there is a problem as i m taking PV batch for registration purpose therefore the whole commercial batch will have no sale and will be kept as inventory .
Therefore can u confirm if a 30 lt batch (3 batches) for PV will be acceptable by MCC if the commercial batch size is 300 lt.