Section 06 Products of the chemical or allied industries 38 Miscellaneous chemical products 38 21 Prepared culture media for development of micro-organisms 38 21 00 Prepared culture media for development or micro-organisms. 38 21 00 00 Prepared culture media for development or micro-organisms. Commodity Code Description 38 21 00 00 000 Prepared culture media for development or micro-organisms.