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348 Corrosives (Hazard Class 8)

348.1 Definition

A corrosive is any liquid or solid that causes visible destruction or irreversible alteration in human skin tissue at the site of contact, or a liquid that has a severe corrosion rate on steel. The term "corrosive" includes all items commonly referred to as acids, as well as most batteries.

348.2 Mailability

The following conditions apply for mailing Hazard Class 8 items:

1. International Mail: All corrosives are prohibited.
2. Domestic Mail: Corrosive materials may be mailable if they meet Limited Quantity requirements for air or surface transportation and comply with the following conditions:
1. Liquid mixtures:
1. Must be 1 pint (16 oz) or less.
2. Must contain 15 percent or less corrosive material, with the remainder being non-hazardous unless otherwise specified in 348.22 for a specific corrosive material.
2. Solid Mixtures:
1. Must be 10 pounds or less per primary receptacle.
2. Must contain 10 percent or less corrosive material, with the remainder being non-hazardous material unless otherwise specified for a specific corrosive solid.

348.21 Nonmailable Corrosives