Which IATA variation is not accepted for UN3100 Lithium Metal Batteries under Section II?

• A. FX-05A
• B. FX-05B
• C. FX-06A
• D. FX-06B

Answer: (A)

Under IATA Dangerous Goods Regulations, Section II sets the conditions under which small lithium metal batteries (UN 3100) can be shipped by air with certain packaging, labeling, and handling requirements. The variations are specific configurations that describe how the batteries are packed and declared. Not every variation meets those Section II criteria for UN 3100, so some are not accepted.

The variation described as not accepted is the one that does not satisfy the Section II requirements for these batteries. In practice, that means the packaging, limits, or handling described by that variation would not be permitted for UN 3100 under Section II, so it can’t be used for air shipments. The other variations listed correspond to configurations that do meet the Section II criteria, so they are acceptable.