---
kind: "section"
citation: "40 C.F.R. § 761.274"
title: "40"
number: "761.274"
heading: "Reporting PCB concentrations in samples."
url: "https://uscodex.org/cfr/40/761.274"
---

# §761.274. Reporting PCB concentrations in samples.

- (a) Report all sample concentrations for non-liquid PCBs on a dry weight basis as micrograms of PCBs per gram of sample (ppm by weight). Report surface sampling results as µg/100 cm 2. Divide 100 cm 2 by the surface area and multiply this quotient by the total number of micrograms of PCBs on the surface to obtain the equivalent measurement of micrograms per 100 cm 2.
- (b) Report all sample concentrations for liquid PCBs on a wet weight basis as micrograms of PCBs per gram of sample (ppm by weight).

## Notes

### Source

Source: 63 FR 35464, June 29, 1998, unless otherwise noted.

### Authority

Authority: 15 U.S.C. 2605, 2607, 2611, 2614, and 2616 and 42 U.S.C. 6939g.

### Source

Source: 43 FR 7156, Feb. 17, 1978, unless otherwise noted.