---
kind: "section"
citation: "40 C.F.R. § 63.1189"
title: "40"
number: "63.1189"
heading: "What test methods do I use?"
url: "https://uscodex.org/cfr/40/63.1189"
---

# §63.1189. What test methods do I use?


You must use the following test methods to determine compliance with the applicable emission limits:

- (a) Method 1 in appendix A to [part 60](/cfr/40/part60.md) of this chapter for the selection of the sampling port locations and number of sampling ports.
- (b) **Method 2 in appendix A to part 60 of this chapter for stack gas velocity and volumetric flow rate.**
- (c) Method 3 or 3A in appendix A to [part 60](/cfr/40/part60.md) of this chapter for oxygen and carbon dioxide for diluent measurements needed to correct the concentration measurements to a standard basis.
- (d) **Method 4 in appendix A to part 60 of this chapter for moisture content of the stack gas.**
- (e) **Method 5 in appendix A to part 60 of this chapter for the concentration of PM.** Each PM test run must consist of a minimum run time of three hours and a minimum sample volume of 3.75 dscm (135 dscf).
- (f) Method 10 in appendix A to [part 60](/cfr/40/part60.md) of this chapter for the concentration of CO, using the continuous sampling option described in [section 7.1.1](/cfr/40/7.1.1.md) of the method. Each CO test run must consist of a minimum run time of one hour.
- (g) Method 318 at [40 CFR part 60](/cfr/40/part60.md), appendix A to this part for the concentration of formaldehyde, phenol, methanol, and carbonyl sulfide.
- (h) **Method to determine the free-formaldehyde content of each resin lot in appendix A of this subpart.**
- (i) Method 26A or 320 at [40 CFR part 60](/cfr/40/part60.md), appendix A to this part for the concentration of hydrogen fluoride and hydrogen chloride.

## Notes

### Amendments

[64 FR 29503, June 1, 1999, as amended at 80 FR 45330, July 29, 2015]

### Source

Source: 64 FR 29503, June 1, 1999, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 7401 et seq.

### Source

Source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.

### Amendments

[64 FR 29503, June 1, 1999, as amended at 80 FR 45330, July 29, 2015]