Examples of Method 21 in a sentence
The permittee shall maintain records that demonstrate the Method 21 analyzer is operated and maintained in accordance with the manufacturer’s operation and maintenance instructions.
Leaks shall be determined through the use of an analyzer meeting U.S. EPA Method 21, 40 CFR Part 60, Appendix A.
To meet the performance evaluation requirements in section 3.1.3 of Method 21 of appendix A of this part, the instrument evaluation procedures of section 4.4 of Method 21 of appendix A of this part shall be used.
Surface emission monitoring shall be performed in accordance with section 4.3.1 of Method 21 of appendix A of this part, except that the probe inlet shall be placed within 5 to 10 centimeters of the ground.
The calibration procedures provided in section 4.2 of Method 21 of appendix A of this part shall be followed immediately before commencing a surface monitoring survey.
The instrument shall be calibrated before use each day of its use by the procedures specified in Method 21.
Method 21 shall be used to determine the presence of leaking sources.
The calibration procedures provided in sections 8 and 10 of Method 21 of appendix A of this part must be followed immediately before commencing a surface monitoring survey.
If required, Method 21 may be used during inspections of the facility.
If required, the detection of leaks of natural gas into the ambient air from the pneumatic controller(s) may be determined using Method 21 from 40 CFR 60 Appendix A; however, compliance is demonstrated through maintaining the manufacturer’s design specifications, showing that the controller is designed to operate with a bleed rate less than 6 scf/hr.