Reference Source

ORGANIC PEROXIDE placard — Organic peroxide, Type B, liquid or solid, temperature controlled — hazard class 5.2

What is the hazard class or division for ORGANIC PEROXIDE placard — Organic peroxide, Type B, liquid or solid, temperature controlled — hazard class 5.2?

For ORGANIC PEROXIDE placard, hazard class or division is 5.2; additional description is Organic peroxide, Type B, liquid or solid, temperature controlled; placarding threshold is any quantity; placard design regulation is 172.552; regulation is § 172.504 General placarding requirements, recorded from its source on 2026-08-19; source re-checked 2026-09-16.

5.2 (Organic peroxide, Type B, liquid or solid, temperature controlled) | ORGANIC PEROXIDE | 172.552

ecfr.gov, retrieved 2026-08-19

Category of material
5.2 — Organic peroxide, Type B, liquid or solid, temperature our reading
Hazard class or division
5.2 verified
Additional description
Organic peroxide, Type B, liquid or solid, temperature controlled verified
Placard name
ORGANIC PEROXIDE verified
Placarding threshold
any quantity our reading
Placard design regulation
172.552 verified
Regulation
§ 172.504 General placarding requirements.
General rule (172.504(a))
Except as otherwise provided in this subchapter, each bulk packaging, freight container, unit load device, transport vehicle or rail car containing any quantity of a hazardous material must be placarded on each side and each end with the type of placards specified in tables 1 and 2 of this section
Sourceecfr.gov
Verified
Review by
DatasetDOT hazmat placarding requirements by hazard class (any-quantity vs. 1,001 lb threshold)

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.