Reference Source

Ammonium hydrogen sulfate · USPS

What is the restriction type for Ammonium hydrogen sulfate · USPS?

For Ammonium hydrogen sulfate, carrier is USPS; restriction type is restricted; scope is domestic mail (air and surface); conditions is Hazard class 8, UN2506, packing group II; domestic mail air: 8A; domestic mail surface: 8A, recorded from its source on 2026-08-10.

Ammonium hydrogen sulfate 8 UN2506 II 8A 8A

— pe.usps.com, retrieved 2026-08-10

Item or substance
Ammonium hydrogen sulfate verified
Carrier
USPS our reading
Restriction type
restricted our reading
Scope
domestic mail (air and surface) our reading
Conditions
Hazard class 8, UN2506, packing group II; domestic mail air: 8A; domestic mail surface: 8A
Sourcepe.usps.com
Verified
Review by
DatasetWhat can be mailed: USPS hazardous materials, plus item rules for post and couriers

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

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.