5.0.3.1 Dangerous goods being shipped under the provisions for Limited Quantities must be packed in accordance with 5.0.1 through 5.0.5 except 5.0.2.3, 5.0.2.5, 5.0.2.11(f), 5.0.2.11(g) and 5.0.2.14.2.
5.0.3.2 When different dangerous goods in Limited Quantities are packed together in one outer package, the quantities of such dangerous goods must be so limited that:
(a) for classes other than Classes 2 and 9, the total net quantity per package does not exceed the value of 1, where “Q” is calculated using the formula:
where n1, n2, etc. are the net quantities per package of the different dangerous goods and M1, M2, etc. are the maximum net quantities per package for these different dangerous goods according to Subsection 4.2– List of Dangerous Goods, for the relevant “Y” Packing Instructions; and
(b) for Classes 2 and 9:
• when packed together without goods of other classes, the gross weight of the package must not exceed 30 kg; or
• when packed together with goods of other classes, the gross weight of the package must not exceed 30 kg and the total net quantity in the package of goods other than in Classes 2 or 9 does not exceed the value of 1 when calculated according to the “Q” formula above;
(c) ? carbon dioxide, solid (dry ice), UN 1845 may be packed together with goods of other classes, provided that the gross mass of the package does not exceed 30 kg. The quantity of dry ice does not need to be taken into account in the calculation of the "Q" value. However, the packaging containing the carbon dioxide, solid (dry ice) and the outer packaging must permit the release of carbon dioxide gas.
(d) for different dangerous goods in one outer packaging consisting only those with the same UN number, packing group and physical state (i.e. solid or liquid), the calculation of the “Q” value is not required. However, the total net quantity in the package must not exceed the maximum net quantity according to Column H of Subsection 4.2 – List of Dangerous Goods.
Note:
The calculated “Q” valued must be rounded up to the first decimal place and entered on the Shipper's Declaration (see 8.1.6.9.2(f)).