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Electronic Code of Federal Regulations

e-CFR data is current as of December 4, 2019

Title 40Chapter ISubchapter CPart 63Subpart HHHHHHH → Appendix


Title 40: Protection of Environment
PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES (CONTINUED)
Subpart HHHHHHH—National Emission Standards for Hazardous Air Pollutant Emissions for Polyvinyl Chloride and Copolymers Production


Table 7 to Subpart HHHHHHH of Part 63—Calibration and Accuracy Requirements for Continuous Parameter Monitoring Systems

If you monitor this parameter .  .  .Then your accuracy requirements are .  .  .And your inspection/calibration frequency
requirements are .  .  .
1. Temperature (non-cryogenic temperature ranges).±1 percent of temperature measured or 2.8 degrees Celsius (5 degrees Fahrenheit) whichever is greaterEvery 12 months.
2. Temperature (cryogenic temperature ranges).±2.5 percent of temperature measured or 2.8 degrees Celsius (5 degrees Fahrenheit) whichever is greaterEvery 12 months.
3. Liquid flow rate±2 percent of the normal range of flowa. Every 12 months.
b. You must select a measurement location where swirling flow or abnormal velocity distributions due to upstream and downstream disturbances at the point of measurement do not exist.
4. Gas flow rate±5 percent of the flow rate or 10 cubic feet per minute, whichever is greatera. Every 12 months.
b. Check all mechanical connections for leakage at least annually.
c. At least annually, conduct a visual inspection of all components of the flow CPMS for physical and operational integrity and all electrical connections for oxidation and galvanic corrosion if your flow CPMS is not equipped with a redundant flow sensor.
5. pH or caustic strength±0.2 pH unitsEvery 8 hours of process operation check the pH or caustic strength meter's calibration on at least two points.
6. Conductivity±5 percent of normal rangeEvery 12 months.
7. Mass flow rate±5 percent of normal rangeEvery 12 months.
8. Pressure±5 percent or 0.12 kilopascals (0.5 inches of water column) whichever is greatera. Calibration is required every 12 months.
b. Check all mechanical connections for leakage at least annually.
c. At least annually perform a visual inspection of all components for integrity, oxidation and galvanic corrosion if CPMS is not equipped with a redundant pressure sensor.

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