Appendix A Linearity Test Observation Sheet
Linearity Test Observation
1. Plant and Audit Information
State Plant ID:
2. System Information
Certified calibration gases?
Are the cal gas concentrations appropriate for each range?
20% - 30%
80 - 100%
Were gases injected nonconsecutively?
Concentration stable before recording?
(not to exceed 15 minutes)?
4. Test Results
Cal Gas Value (R)
Gas Cylinder ID No.
Mean Response (A)
| R - A |
Linearity Result (LE)
where LE = Percent Linearity Error
R = Reference value of calibration gas
A = Average of monitoring system response
Part 75 Field Audit Manual - July 16, 2003 Page A-13