1. LawStack
  2. Title 40 - Protection of Environment
  3. Chapter I - ENVIRONMENTAL PROTECTION AGENCY
  4. Subchapter U - AIR POLLUTION CONTROLS
  5. Part 1066 - VEHICLE-TESTING PROCEDURES
  6. Subpart B - Equipment, Measurement Instruments, Fuel, and Analytical Gas Specifications
  7. 40 CFR § 1066.150
40 CFR § 1066.150
Analyzer interference and quench verification limit
June 9, 2020
CFR

Analyzers must meet the interference and quench verification limits in the following table on the lowest, or most representative, instrument range that will be used during emission testing, instead of those specified in 40 CFR part 1065, subpart D:

Table 1 of §1066.150—Analyzer Interference and Quench Verification Limits

Open Table
Verification Limit
40 CFR 1065.350 ±2% of full scale.
40 CFR 1065.355 ±2% of full scale.
40 CFR 1065.370 ±2% of full scale.
40 CFR 1065.375 ±2% of the flow-weighted mean concentration of N2O expected at the standard.
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§ 1066.145 Test fuel, engine fluids, analytical gases, and other calibration standards

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