Perchloric acid with more than 50 percent but not more than 72 percent acid, by mass · USPS
What is the restriction type for Perchloric acid with more than 50 percent but not more than 72 percent acid, by mass · USPS?
For Perchloric acid with more than 50 percent but not more than 72 percent acid, by mass, carrier is USPS; restriction type is prohibited; scope is domestic mail (air and surface); conditions is Hazard class 5.1, UN1873, packing group I; domestic mail air: Prohibited; domestic mail surface: Prohibited, recorded from its source on 2026-08-10.
Perchloric acid with more than 50 percent but not more than 72 percent acid, by mass 5.1 UN1873 I Prohibited Prohibited
— pe.usps.com, retrieved 2026-08-10
- Item or substance
- Perchloric acid with more than 50 percent but not 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
- Hazard class 5.1, UN1873, packing group I; domestic mail air: Prohibited; domestic mail surface: Prohibited
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