Perchloric acid, with more than 72 percent acid by mass · USPS
What is the restriction type for Perchloric acid, with more than 72 percent acid by mass · USPS?
For Perchloric acid, with more than 72 percent acid by mass, carrier is USPS; restriction type is prohibited; scope is domestic mail (air and surface); conditions is Listed as Forbidden in the Pub 52 Appendix A mailability guide; Prohibited in domestic mail by air and by surface, recorded from its source on 2026-08-10.
Perchloric acid, with more than 72 percent acid by mass Forbidden Prohibited Prohibited Prohibited Prohibited
— pe.usps.com, retrieved 2026-08-10
- Item or substance
- Perchloric acid, with more than 72 percent acid by mass verified
- Carrier
- USPS our reading
- Restriction type
- prohibited our reading
- Scope
- domestic mail (air and surface) our reading
- Conditions
- Listed as Forbidden in the Pub 52 Appendix A mailability guide; Prohibited in domestic mail by air and by surface.
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
Source
- pe.usps.comhttps://pe.usps.com/cpim/ftp/pubs/pub52/pub52.pdf