Column 5 - Subsidiary ID & Column 6 - Packing Group
Column 5
Subsidiary identifies the hazard class or division of any subsidiary hazard posed by a hazardous material. The subsidiary hazard may vary, depending on the applicable Packing Group.
Column 6
Packing Group (PG) specifies one or more packing groups assigned to each PSN and hazard class. Hazard classes 2, 7, and ORM-D do not have packing groups. Unless otherwise identified, Hazard Class 1 uses PG II. See A4.3 for additional information on PG.
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