D002 RCRA waste code Strong acids & caustics, at pH 2 or lower or 12.5 or higher.

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Based on 40 CFR 261.22
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Characteristic hazardous waste
Corrosive waste

Aqueous waste with pH 2 or lower or 12.5 or higher, or liquid that corrodes steel at the specified rate.

Acid carboy, drawn for RCRA waste code D002, corrosive waste. Strong acids & caustics, at pH 2 or lower or 12.5 or higher. — Corrosive waste is characteristic hazardous waste. Aqueous waste at pH 2 or lower or 12.5 or higher, or liquid that eats through steel.

Is D002 hazardous waste?

Yes. D002 is hazardous waste when a representative sample meets either federal corrosivity test. The pH test is for aqueous waste. The steel-corrosion test is for liquid waste and stands alone.

D002 is a nonacute characteristic. On a required hazardous waste manifest, put D002 in Item 13. See VSQG exemptions and empty-container rules.

What does D002 cover?

D002 covers aqueous waste with a pH of 2 or lower, or 12.5 or higher, measured by Method 9040C. It also covers a liquid that corrodes SAE 1020 steel faster than 6.35 mm (0.250 inch) per year at 55 °C (130 °F), measured by Method 1110A. Either result is enough.

Hazard: C, corrosive
Rule: 40 CFR 261.22

Is corrosive waste D002 or D001?

Code	When it fits
D002	An aqueous sample meets either pH limit, or a liquid exceeds the steel-corrosion rate.
D001	The waste isn't D002 but meets an ignitability criterion on its own.
No D002 code	Neither corrosivity test is met. Check every other characteristic and listing.

Only aqueous waste takes the pH test, but any liquid can take the steel-corrosion test. The testing or knowledge behind the call must support the test you use.

Which wastes take D002?

Waste	When it’s D002
Acid waste	An aqueous sample has pH 2 or lower, or the liquid corrodes steel at the federal test rate.
Caustic or alkaline waste	An aqueous sample has pH 12.5 or higher, or the liquid corrodes steel at the federal test rate.
Paint stripping waste	A representative sample meets the corrosivity definition, such as a caustic stripper.
Radiator repair waste	Zinc-chloride coolant or cleaning liquid meets the corrosivity definition.
Shop drain and sump sludge	The sludge's aqueous pH or liquid steel corrosion meets the D002 test.
Tank bottoms and product heels	The residue is corrosive.
Tank and railcar washwater	The washwater's aqueous pH or liquid steel corrosion meets the D002 test.
Spent rust-removal acid	The waste meets the corrosivity definition.

Which codes sit beside D002?

Code	What it is
D003	Reactive waste
D004	Arsenic
D005	Barium
D006	Cadmium
D007	Chromium
D008	Lead
D009	Mercury
D010	Selenium