---
kind: "section"
citation: "40 C.F.R. § 1065.267"
title: "40"
number: "1065.267"
heading: "Gas chromatograph with a flame ionization detector."
url: "https://uscodex.org/cfr/40/1065.267"
---

# §1065.267. Gas chromatograph with a flame ionization detector.

- (a) **Application.** You may use a gas chromatograph with a flame ionization detector (GC-FID) to measure CH4 and C2H6 concentrations of diluted exhaust for batch sampling. While you may also use a nonmethane cutter to measure CH4, as described in [§ 1065.265](/cfr/40/1065.265.md), use a reference procedure based on a gas chromatograph for comparison with any proposed alternate measurement procedure under [§ 1065.10](/cfr/40/1065.10.md).
- (b) **Component requirements.** We recommend that you use a GC-FID that meets the specifications in [§ 1065.205](/cfr/40/1065.205.md) and that the measurement be done according to SAE J1151 (incorporated by reference, see [§ 1065.1010](/cfr/40/1065.1010.md)). The GC-FID must meet the linearity verification in [§ 1065.307](/cfr/40/1065.307.md).

## Notes

### Amendments

[76 FR 57442, Sept. 15, 2011, as amended at 79 FR 23761, Apr. 28, 2014; 81 FR 74163, Oct. 25, 2016; 89 FR 29796, Apr. 22, 2024]

### Authority

Authority: 42 U.S.C. 7401-7671q.

### Source

Source: 70 FR 40516, July 13, 2005, unless otherwise noted.

### Amendments

[76 FR 57442, Sept. 15, 2011, as amended at 79 FR 23761, Apr. 28, 2014; 81 FR 74163, Oct. 25, 2016; 89 FR 29796, Apr. 22, 2024]