• If a substance is a mixture or solution, the word MIXTURE or SOLUTION should be added as part of the proper shipping name. If the substance is composed of two of more dangerous goods, use the entry that most precisely describes the mixture or solution.

If a substance is specifically listed by name in the Dangerous Goods List, it must be identified in transport by the proper shipping name in the List. A substance listed by name that contains technical impurities or additives for stability or other purposes that affect its classification must be considered a mixture or solution.

A mixture or solution is not subject to the International Maritime Dangerous Goods (IMDG) Code if the characteristics, properties, form, or physical state of the mixture or solution are such that it does not meet the criteria for inclusion in any class.

If a mixture or solution meets the classification criteria of a single predominant substance identified by name in the List and has one or more substances not subject to the provisions of this Code and/or traces of one or more substances identified by name in the List, then assign the UN number and proper shipping name of the predominant substance named in the List.

This requirement does not apply if:

• The mixture or solution is identified by name in the List;
• The entry for the substance named in the List specifically indicates that it applies only to the pure substance;
• The hazard class or division, subsidiary hazard(s), packing group, or physical state of the mixture or solution is different from that of the substance named in the List; or
• The hazard characteristics and properties of the mixture or solution necessitate emergency response measures different from those required for the substance identified by name in the List.

Qualifying words such as “MIXTURE” or “SOLUTION,” as appropriate, must be added as part of the proper shipping name. The concentration of the mixture or solution may also be indicated after the basic description.

For a mixture or solution composed of two or more dangerous goods, use the entry that most precisely describes the mixture or solution.