Ammonium persulfate · USPS
What is the restriction type for Ammonium persulfate · USPS?
For Ammonium persulfate, carrier is USPS; restriction type is restricted; scope is domestic mail (air and surface); conditions is Hazard class 5.1, UN1444, packing group III; domestic mail air: 5A; domestic mail surface: 5A, recorded from its source on 2026-08-10.
Ammonium persulfate 5.1 UN1444 III 5A 5A
— pe.usps.com, retrieved 2026-08-10
- Item or substance
- Ammonium persulfate verified
- Carrier
- USPS our reading
- Restriction type
- restricted our reading
- Scope
- domestic mail (air and surface) our reading
- Conditions
- Hazard class 5.1, UN1444, packing group III; domestic mail air: 5A; domestic mail surface: 5A
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