[Title 40 CFR 60.74]
[Code of Federal Regulations (annual edition) - July 1, 2009 Edition]
[Title 40 - PROTECTION OF ENVIRONMENT]
[Chapter I - ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)]
[Subchapter C - AIR PROGRAMS (CONTINUED)]
[Part 60 - STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--]
[Subpart G - Standards of Performance for Nitric Acid Plants]
[Sec. 60.74 - Test methods and procedures.]
[From the U.S. Government Printing Office]


40PROTECTION OF ENVIRONMENT62009-07-012009-07-01false60.74Sec. 60.74PROTECTION OF ENVIRONMENTENVIRONMENTAL PROTECTION AGENCY (CONTINUED)AIR PROGRAMS (CONTINUED)STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--Standards of Performance for Nitric Acid Plants
Sec. 60.74  Test methods and procedures.

    (a) In conducting the performance tests required in Sec. 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 Sec. 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 
NOX standard in Sec. 60.72 as follows:
    (1) The emission rate (E) of NOX shall be computed for 
each run using the following equation:

E=(Cs Qsd)/(P K)

where:

E=emission rate of NOX as NO2, kg/metric ton (lb/
ton) of 100 percent nitric acid.
Cs=concentration of NOX as NO2, g/dscm 
(lb/dscf).
Qsd=volumetric flow rate of effluent gas, dscm/hr (dscf/hr).
P=acid production rate, metric ton/hr (ton/hr) or 100 percent nitric 
acid.
K=conversion factor, 1000 g/kg (1.0 lb/lb).

    (2) Method 7 shall be used to determine the NOX 
concentration of each grab sample. Method 1 shall be used to select the 
sampling site, and the sampling point shall be the centroid of the stack 
or duct or at a point no closer to the walls than 1 m (3.28 ft). Four 
grab samples shall be taken at approximately 15-minute intervals. The 
arithmetic mean of the four sample concentrations shall constitute the 
run value (Cs).
    (3) Method 2 shall be used to determine the volumetric flow rate 
(Qsd) of the effluent gas. The measurement site shall be the 
same as for the NOX sample. A velocity traverse shall be made 
once per run within the hour that the NOX samples are taken.
    (4) The methods of Sec. 60.73(c) shall be used to determine the 
production rate (P) of 100 percent nitric acid for each run. Material 
balance over the production system shall be used to confirm the 
production rate.
    (c) The owner or operator may use the following as alternatives to 
the reference methods and procedures specified in this section:
    (1) For Method 7, Method 7A, 7B, 7C, or 7D may be used. If Method 7C 
or 7D is used, the sampling time shall be at least 1 hour.
    (d) The owner or operator shall use the procedure in Sec. 60.73(b) 
to determine the conversion factor for converting the monitoring data to 
the units of the standard.

[54 FR 6666, Feb. 14, 1989]