40 CFR 89.406 - Pre-test procedures.
(a) Allow a minimum of 30 minutes warmup in the standby or operating mode prior to spanning the analyzers.
(b) Replace or clean the filter elements and then vacuum leak check the system per § 89.316(a). Allow the heated sample line, filters, and pumps to reach operating temperature.
(1) Check the sample-line temperatures (see § 89.309(a)(4)(ii) and (a)(5)(i)(A)).
(2) Check that the system response time has been accounted for prior to sample collection data recording.
(d) Check analyzer zero and span at a minimum before and after each test. Further, check analyzer zero and span any time a range change is made or at the maximum demonstrated time span for stability for each analyzer used.
[59 FR 31335, June 17, 1994. Redesignated and amended at 63 FR 56995, 57015, Oct. 23, 1998]
Title 40 published on 2013-07-01
no entries appear in the Federal Register after this date.