43 CFR §3175.142
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
- (a)Instantaneous flow rate. The instantaneous flow rates must meet the criteria in § 3175.141(d) for each test identified in Table 1 to this section, using the gas compositions identified in Table 2 to this section, as prescribed in Table 1 to this section.
- (b)Sums and averages.
- (1)Fixed input values from test 2 in Table 1 to this section must be applied for a period of at least 24 hours.
- (2)At the conclusion of the 24-hour period, the following hourly and daily values must meet the criteria in § 3175.141(d):
- (c)Other tests. The following additional tests must be performed on the flow-computer software:
- (1)Each parameter of the configuration log must be changed to ensure the event log properly records the changes according to the variables listed in § 3175.104(c); and
- (2)Inputs simulating a 15 percent and 150 percent over-range of the differential and static-pressure transducer's calibrated span must be entered to verify that the over-range condition triggers an alarm or an entry in the event log.