§ 61.125 Test methods and procedures.

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Title 40 CFR: Protection of Environment › Chapter I › Part 61 › Subpart K › § 61.125: § 61.125 Test methods and procedures.

This text was captured on Aug 14, 2026. It is a snapshot, not a live feed, so check the official code before relying on it.

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(a) Each owner or operator of a source required to test emissions under § 61.123, unless an equivalent or alternate method has been approved by the Administrator, shall use the following test methods: (1) Method 1 of appendix A to 40 CFR part 60 shall be used to determine sample and velocity traverses; (2) Method 2 of appendix A to 40 CFR part 60 shall be used to determine velocity and volumetric flow rate; (3) Method 3 of appendix A to 40 CFR part 60 shall be used for gas analysis; (4) Method 5 of appendix A to 40 CFR part 60 shall be used to collect particulate matter containing the polonium-210; and (5) Method 111 of appendix B to 40 CFR part 61 shall be used to determine the polonium-210 emissions. [54 FR 51699, Dec. 15, 1989, as amended at 65 FR 62156, Oct. 17, 2000]

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