Procedures.

§ 65.85 Procedures.

(a) Vapor tightness. For the purposes of demonstrating vapor tightness to determine compliance with § 65.84(c)(2), the following procedures and equipment shall be used:

(1) The pressure test procedures specified in Method 27 of appendix A of 40 CFR part 60; and

(2) A pressure measurement device that has a precision of ±2.5 millimeters of mercury (0.10 inch) or better and that is capable of measuring above the pressure at which the tank truck or railcar is to be tested for vapor tightness.

(b) Engineering assessment. Engineering assessment to determine if a vent stream is halogenated or flow rate of a gas stream includes, but is not limited to, the following examples:

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