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§ 1065.274 Zirconium dioxide (ZrO2) NOX analyzer.
(a) Application. You may use a zirconia oxide (ZrO2) analyzer to measure NOX in raw exhaust for field-testing engines.
(b) Component requirements. We recommend that you use a ZrO2 analyzer that meets the specifications in Table 1 of § 1065.205. Note that your ZrO2-based system must meet the linearity verification in § 1065.307.