Section 60.303 - Test methods and procedures(a) In conducting the performance tests required in § 60.8 , the owner or operator shall use as reference methods and procedures the test methods in appendix A of this part or other methods and procedures as specified in this section, except as provided in § 60.8(b) . Acceptable alternative methods and procedures are given in paragraph (c) of this section.(b) The owner or operator shall determine compliance with the particulate matter standards in § 60.302 as follows: (1) Method 5 shall be used to determine the particulate matter concentration and the volumetric flow rate of the effluent gas. The sampling time and sample volume for each run shall be at least 60 minutes and 1.70 dscm (60 dscf). The probe and filter holder shall be operated without heaters.(2) Method 2 shall be used to determine the ventilation volumetric flow rate.(3) Method 9 and the procedures in § 60.11 shall be used to determine opacity.(c) The owner or operator may use the following as alternatives to the reference methods and procedures specified in this section:(1) For Method 5, Method 17 may be used.54 FR 6674, Feb. 14, 1989