Can I Bring Formaldehyde solution, less than 10 percent on a Plane to United States?
Formaldehyde solution, less than 10 percent
Restrictions Apply
According to TSA guidelines, formaldehyde solutions of less than 10% are not restricted as hazardous materials. Leak-proof packaging with absorbent material is still strongly encouraged. For formaldehyde solutions containing more than 10% formaldehyde, see separate entry for "Biological specimens in preservative solutions." Tip: Full-strength "Formalin" is typically 35%-40% formaldehyde by volume. So a solution that is less than 25% Formalin would be less than 10% formaldehyde and not restricted.
The final decision rests with the TSA officer on whether an item is allowed through the checkpoint. Official TSA Rules →
Under 3.4oz (100ml)
Allowed in carry-on
Over 3.4oz (100ml)
Must go in checked bag
Checked Baggage
Allowed in any size
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Biological specimens, non-infectious, in preservative solutions
