{"data":{"id":"us/40-cfr-1066.150","jurisdiction":"us","citation":"40 CFR 1066.150","heading":"Analyzer interference and quench verification limit.","body":"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:\nTable 1 of § 1066.150—Analyzer Interference and Quench Verification Limits\nVerification Limit\n40 CFR 1065.350 ±2% of full scale.\n40 CFR 1065.355 ±2% of full scale.\n40 CFR 1065.370 ±2% of full scale.\n40 CFR 1065.375 ±2% of the flow-weighted mean concentration of N2 O expected at the standard.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER U—AIR POLLUTION CONTROLS","PART 1066—VEHICLE-TESTING PROCEDURES","Subpart B—Equipment, Measurement Instruments, Fuel, and Analytical Gas Specifications"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"4cf9d2f0b265fc5f7d3d59f9a37c2dfc0830ccbfc70cce767adefdb1650eda4d","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-1066.145","next":"us/40-cfr-1066.201"},"notice":"GroundRules: Original legal text. Not legal advice."}