Reference Source

(b) Methyl ethyl ketone

For (b) Methyl ethyl ketone, cas no. is 78-93-3; cercla rq (lbs) is 5000; rcra waste number is U159; regulatory categories is 4, verified against its source on 2026-08-05.

Substance
(b) Methyl ethyl ketone verified
CAS No.
78-93-3 verified
CERCLA RQ (lbs)
5000 verified
RCRA waste number
U159 verified
Regulatory categories
4 verified
Sourceecfr.gov
Verified2026-08-05
Review by2027-08-05
DatasetUS federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)

What the source says

(b) Methyl ethyl ketone | 78-93-3 | 4 | U159 | 5000 (2270)

ecfr.gov, retrieved 2026-08-05

Source

Last verified against source: 2026-08-05. Due for re-check by 2027-08-05. This page as Markdown · OKF bundle · full dataset as JSON.