UN 2031 – NITRIC ACID other than red fuming, with more than 70 % nitric acid

This article or substance may be transported on passenger aircraft only with the prior approval of the appropriate authority of the State of Origin and the State of the Operator under the written conditions established by those authorities. The conditions must include the quantity limitations and packing requirements and these must comply with S-3;1.2.2 of the Supplement. A copy of the documents of approval, showing the quantity limitations and packing requirements, must accompany the consignment. Transport in accordance with this special provision must be noted on the dangerous goods transport document. The article or substance may be carried on cargo aircraft in accordance with columns 12 and 13 of Table 3-1. When States, other than the State of Origin and the State of the Operator, have notified ICAO that they require prior approval of shipments made under this special provision, approval must also be obtained from these States, as appropriate.

UN 2031 - Nitric acid, other than red fuming, with more than 20 % and less than 65 % nitric acid intended for use in sterilization devices only, may be transported on passenger aircraft irrespective of the indication of "forbidden" in columns 10 and 11 of Table 3-1 provided: a) each inner packaging contains not more than 30 mL; b) each inner packaging is contained in a sealed leak-proof intermediate packaging with sufficient absorbent material capable of containing contents of the inner packaging; c) intermediate packagings are securely packed in an outer packaging of a type permitted by Packing Instruction 855 meeting the Packing Group I performance requirements of Part 6; Chapter 1; d) the maximum quantity of nitric acid in the package does not exceed 300 mL; and e) reference to Special Provision A212 is made on the dangerous goods transport document as required by Part 5;4.1.5.8.