Class I equivalent method

Class I equivalent method means an equivalent method for PM 2.5 or PM 102.5 which is based on a sampler that is very similar to the sampler specified for reference methods in appendix L or appendix O (as applicable) of part 50 of this chapter, with only minor deviations or modifications, as determined by EPA.

Source

40 CFR § 53.1

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Scoping language

Terms used but not defined in this part shall have the meaning given them by the Act.

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