Where the quantity of warehoused goods is to be ascertained by taking an account thereof, it shall be ascertained for the purposes of these Regulations by reference to weight, measure, strength, original gravity or number as the case may require.

Where under these Regulations an occupier is required to deliver a copy of an account of goods he shall deliver to the proper officer a notice giving such details of the account as the proper officer requires, and the taking of the account shall not be complete until that notice has been delivered.