Reference Source

Calcium hypochlorite mixture, dry, corrosive with more than 10 percent but not more than 39 percent available chlorine · USPS

What is the restriction type for Calcium hypochlorite mixture, dry, corrosive with more than 10 percent but not more than 39 percent available chlorine · USPS?

For Calcium hypochlorite mixture, dry, corrosive with more than 10 percent but not more than 39 percent available chlorine, carrier is USPS; restriction type is restricted; scope is domestic mail (air and surface); conditions is Hazard class 5.1, UN3486, packing group III; domestic mail air: 5A; domestic mail surface: 5A, recorded from its source on 2026-08-10.

Calcium hypochlorite mixture, dry, corrosive with more than 10 percent but not more than 39 percent available chlorine 5.1 UN3486 III 5A 5A

— pe.usps.com, retrieved 2026-08-10

Item or substance
Calcium hypochlorite mixture, dry, corrosive with more than 10 percent but not more than 39 percent available chlorine verified
Carrier
USPS our reading
Restriction type
restricted our reading
Scope
domestic mail (air and surface) our reading
Conditions
Hazard class 5.1, UN3486, packing group III; domestic mail air: 5A; domestic mail surface: 5A
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

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