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Notes

§1065.284. Zirconium dioxide (ZrO 2 ) air-fuel ratio and O 2 analyzer.

40 C.F.R. § 1065.284

(a)
Application. You may use a zirconia (ZrO2) analyzer to measure air-to-fuel ratio in raw exhaust for continuous sampling. You may use O2 measurements with intake air or fuel flow measurements to calculate exhaust flow rate according to § 1065.650.
(b)
Component requirements. We recommend that you use a ZrO2 analyzer that meets the specifications in § 1065.205. Note that your ZrO2-based system must meet the linearity verification in § 1065.307.
Notes, amendments, and revision history

Amendments

[70 FR 40516, July 13, 2005, as amended at 76 FR 57443, Sept. 15, 2011; 79 FR 23762, Apr. 28, 2014; 89 FR 29797, Apr. 22, 2024]

Authority

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

Source

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

Amendments

[70 FR 40516, July 13, 2005, as amended at 76 FR 57443, Sept. 15, 2011; 79 FR 23762, Apr. 28, 2014; 89 FR 29797, Apr. 22, 2024]