# Non-infectious specimens in preservative solutions (formaldehyde, ethanol) · FAA (air transport) — Flying with restricted items: FAA, TSA and IATA baggage and air cargo rules

For Non-infectious specimens in preservative solutions (formaldehyde, ethanol), authority is FAA (air transport); restriction type is restricted; scope is carry-on and checked baggage; conditions is No more than 30 ml of free liquid solution in each inner packaging and no more than one liter in the entire outer package; marked 'Scientific research specimens, 49 CFR 173.4b applies', recorded from its source on 2026-08-10.

- **Item or substance:** Non-infectious specimens in preservative solutions (formaldehyde, ethanol)
- **Authority:** FAA (air transport) _(our reading, not quoted from the source)_
- **Restriction type:** restricted _(our reading, not quoted from the source)_
- **Scope:** carry-on and checked baggage _(our reading, not quoted from the source)_
- **Conditions:** No more than 30 ml of free liquid solution in each inner packaging and no more than one liter in the entire outer package; marked 'Scientific research specimens, 49 CFR 173.4b applies'.

## What the source says

> No more than 30 ml of free liquid solution in each inner packaging and no more than one liter in the entire outer package.

## Source

- https://www.faa.gov/hazmat/packsafe/non-infectious-specimens

Last verified: 2026-08-10. Review by: 2027-08-10.
Part of [Flying with restricted items: FAA, TSA and IATA baggage and air cargo rules](https://referencesource.org/air-travel-item-restrictions/).