View all text of Subjgrp 31 [§ 1065.360 - § 1065.369]
§ 1065.366 - Interference verification for FTIR analyzers.
(a) Scope and frequency. If you measure CH
(b) Measurement principles. Interference gases can interfere with certain analyzers by causing a response similar to the target analyte. If the analyzer uses compensation algorithms that utilize measurements of other gases to meet this interference verification, simultaneously conduct these other measurements to test the compensation algorithms during the analyzer interference verification.
(c) System requirements. An FTIR analyzer must have combined interference that is within ±2% of the flow-weighted mean concentration of CH
(d) Procedure. Perform the interference verification for an FTIR analyzer using the same procedure that applies for N