Test sampler

Test sampler means a PM 10 sampler, PM 2.5 sampler, or PM 102.5 sampler subjected to testing as part of a candidate method in accordance with subparts C, D, E, or F of this part.

Source

40 CFR § 53.1

---

Scoping language

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

---

Is this correct? or