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Table 3 Certification Performance Specifications
| Parameter | Component | Level | Specification | References | |
|---|---|---|---|---|---|
| Specifi-cations | Test Procedures | ||||
| 24-hour calibration drift | CO2 (or O2) analyzer | Low level (0–20% FS) Mid level (40–60% FS) High level (80–100% FS) |
≤0.5% CO2 (or O2) ≤0.5% CO2 (or O2) ≤0.5% CO2 (or O2) |
5.1.2 | 5.3.2 |
| Stack gas moisture monitor* – wet O2 /Temp./relative humidity (RH) type | Low level (0–20% FS) High level (80–100% FS) |
≤0.5% O2 ≤0.5% O2 |
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| Flow monitor with system calibration capability | Low level (0–20% FS) High level (80–100% FS) |
≤ the greater of 3.0% FS or 0.6 m/s absolute difference 3.0% FS or 0.6 m/s absolute difference |
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| Flow monitor without system calibration capability | Electronic reference level | ≤3.0% FS | 6.2.2 | ||
| System response time | Dedicated analyzer | – | ≤200 seconds for 90% change | 5.1.3 | 5.3.3 |
| Time-shared system | – | ≤15 minutes for 90% change | |||
| Relative accuracy (RA) | CO2 (or O2) analyzer | Representative load level | ≤ the greater of 10.0% RA or 0.5% CO2 (or O2) avg. absolute difference | 5.1.4 | 5.3.4 |
| Stack gas moisture monitor* | Minimum safe and stable load level Mid load (40–60%) High load (90–100%) |
≤ the greater of 10.0% RA or 2.0% of (100 - Bws) avg. absolute difference 10.0% RA or 2.0% of (100 - Bws) avg. absolute difference 10.0% RA or 2.0% of (100 - Bws) avg. absolute difference |
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| Flow monitor | Minimum safe and stable load level Mid load level (40–60%) High load level (90–100%) |
≤ the greater of 10.0% RA or 0.6 m/s avg. absolute difference 10.0% RA or 0.6 m/s avg. absolute difference 10.0% RA or 0.6 m/s avg. absolute difference |
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| CO2 mass emission | Representative load level | ≤10.0% RA | |||
| Bias | CO2 (or O2) analyzer | Representative load level | ≤ the greater of 5.0% of FS value or 0.5% CO2 (or O2) avg absolute difference | 5.1.5 | 5.3.5 |
| Stack gas moisture monitor* | Representative load level | ≤ the greater of 5.0% FS or 1.0% of (100 - Bws) avg absolute difference | |||
| Flow monitor | Representative load level | ≤ the greater of 5.0% of FS value or 0.6 m/s avg. absolute difference | |||
Notes: * The performance specifications for stack gas moisture based on wet O2 measurements (calibration drift, response time, relative accuracy, and availability) are summarized in Table 3 and Table 5. Other moisture monitoring systems may be used to correct dry measured concentrations, if it is demonstrated that the system is able to calculate the hourly factor (100 - Bws) with an error ≤2.0% all year round. Note that Bws is the moisture content of the stack gas (in % of volume).