Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 63, Subpt. AA, Tbl. 5 Table 5 to Subpart AA of Part 63—Calibration and Quality Control Requirements for Continuous Parameter Monitoring System (CPMS)

Temperature

±1 percent over the normal range of temperature measured or 2.8 degrees Celsius (5 degrees Fahrenheit), whichever is greater, for non-cryogenic temperature ranges

Performance evaluation annually and following any period of more than 24 hours throughout which the temperature exceeded the maximum rated temperature of the sensor, or the data recorder was off scale.

±2.5 percent over the normal range of temperature measured or 2.8 degrees Celsius (5 degrees Fahrenheit), whichever is greater, for cryogenic temperature ranges

Visual inspections and checks of CPMS operation every 3 months, unless the CPMS has a redundant temperature sensor.

Flow Rate

±5 percent over the normal range of flow measured or 1.9 liters per minute (0.5 gallons per minute), whichever is greater, for liquid flow rate

Performance evaluation annually and following any period of more than 24 hours throughout which the flow rate exceeded the maximum rated flow rate of the sensor, or the data recorder was off scale.

±5 percent over the normal range of flow measured or 280 liters per minute (10 cubic feet per minute), whichever is greater, for gas flow rate

Checks of all mechanical connections for leakage monthly.

±5 percent over the normal range measured for mass flow rate

Visual inspections and checks of CPMS operation every 3 months, unless the CPMS has a redundant flow sensor.

Pressure

±5 percent over the normal range measured or 0.12 kilopascals (0.5 inches of water column), whichever is greater

Checks for obstructions (e.g., pressure tap pluggage) at least once each process operating day.

Performance evaluation annually and following any period of more than 24 hours throughout which the pressure exceeded the maximum rated pressure of the sensor, or the data recorder was off scale.

Checks of all mechanical connections for leakage monthly. Visual inspection of all components for integrity, oxidation and galvanic corrosion every 3 months, unless the CPMS has a redundant pressure sensor.

Selection of a representative measurement location that minimizes or eliminates pulsating pressure, vibration, and internal and external corrosion.

Sorbent Injection Rate

±5 percent over the normal range measured

Performance evaluation annually.

Visual inspections and checks of CPMS operation every 3 months, unless the CPMS has a redundant sensor.

Select a representative measurement location that provides measurement of total sorbent injection.

Secondary voltage

±1kV