As stated in §63.2998(c), you must comply with the minimum requirements for monitoring and recordkeeping in the following table:
| You must monitor these parameters: | At this frequency: | And record for the monitored parameter: |
|---|---|---|
| 1. Thermal oxidizer temperature14 | Continuously | 15-minute and 3-hour block averages. |
| 2. Other process or control device parameters specified in your OMM plan24 | As specified in your OMM plan | As specified in your OMM plan. |
| 3. Urea-formaldehyde resin solids application rate4 | On each operating day, calculate the average lb/h application rate for each product manufactured during that day | The average lb/h value for each product manufactured during the day. |
| 4. Resin free-formaldehyde content4 | For each lot of resin purchased | The value for each lot used during the operating day. |
| 5. Loss-on-ignition34 | Measured at least once per day, for each product manufactured during that day | The value for each product manufactured during the operating day. |
| 6. UF-to-latex ratio in the binder34 | For each batch of binder prepared the operating day | The value for each batch of binder prepared during the operating day. |
| 7. Weight of the final mat product per square (lb/roofing square)34 | Each product manufactured during the operating day | The value for each product manufactured during the operating day. |
| 8. Average nonwoven wet-formed fiberglass mat production rate (roofing square/h)34 | For each product manufactured during the operating day | The average value for each product manufactured during operating day. |
1Required if a thermal oxidizer is used to control formaldehyde emissions.
2Required if process modifications or a control device other than a thermal oxidizer is used to control formaldehyde emissions.
3These parameters must be monitored and values recorded, but no operating limits apply.
4You are not required to monitor or record these parameters during periods when using a non-HAP binder. If you do not monitor these parameters during periods when using a non-HAP binder, you must record the dates and times that production of mat using the non-HAP binder began and ended.
[84 FR 6697, Feb. 28, 2019]
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