The description of the item 38220031 of Australia HScode: Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, and certified reference materials (excl. compound diagnostic reagents designed to be administered to the patient, blood-grouping reagents, animal blood prepared for therapeutic, prophylactic or diagnostic uses and vaccines, toxins, cultures of micro-organisms and similar products): Goods, as follows (a) in strips or rolls of a width exceeding 15 cm; (b) in rectangular (including square) sheets with one side exceeding 36 cm and the other side exceeding 15 cm, in the unfolded state: Indicator paper and paperboard