[Title 40 CFR 60.195]
[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 S - Standards of Performance for Primary Aluminum Reduction Plants]
[Sec. 60.195 - Test methods and procedures.]
[From the U.S. Government Printing Office]


40PROTECTION OF ENVIRONMENT62009-07-012009-07-01false60.195Sec. 60.195PROTECTION OF ENVIRONMENTENVIRONMENTAL PROTECTION AGENCY (CONTINUED)AIR PROGRAMS (CONTINUED)STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--Standards of Performance for Primary Aluminum Reduction Plants
Sec. 60.195  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).
    (b) The owner or operator shall determine compliance with the total 
fluorides and visible emission standards in Sec. Sec. 60.192 and 60.193 
as follows:
    (1) The emission rate (Ep) of total fluorides from 
potroom groups shall be

[[Page 390]]

computed for each run using the following equation:

Ep=[(Cs Qsd)1+(Cs 
    Qsd)2]/(P K)

where:

Ep=emission rate of total fluorides from a potroom group, kg/
Mg (lb/ton).
Cs=concentration of total fluorides, mg/dscm (gr/dscf).
Qsd=volumetric flow rate of effluent gas, dscm/hr (dscf/hr).
P=aluminum production rate, Mg/hr (ton/hr).
K=conversion factor, 10\6\ mg/kg (7,000 gr/lb).
1=subscript for primary control system effluent gas.
2=subscript for secondary control system or roof monitor effluent gas.

    (2) The emission rate (Eb) of total fluorides from anode 
bake plants shall be computed for each run using the following equation:

Eb=(Cs Qsd)/(PeK)

where:

Eb=emission rate of total fluorides, kg/Mg (lb/ton) of 
aluminum equivalent.
Cs=concentration of total fluorides, mg/dscm (gr/dscf).
Qsd=volumetric flow rate of effluent gas, dscm/hr (dscf/hr).
Pe=aluminum equivalent for anode production rate, Mg/hr (ton/
hr).
K=conversion factor, 10\6\ mg/kg (7,000 gr/lb).

    (3) Methods 13A or 13B shall be used for ducts or stacks, and Method 
14 for roof monitors not employing stacks or pollutant collection 
systems, to determine the total fluorides concentration (Cs) 
and volumetric flow rate (Qsd) of the effluent gas. The 
sampling time and sample volume for each run shall be at least 8 hours 
and 6.80 dscm (240 dscf) for potroom groups and at least 4 hours and 
3.40 dscm (120 dscf) for anode bake plants.
    (4) The monitoring devices of Sec. 60.194(a) shall be used to 
determine the daily weight of aluminum and anode produced.
    (i) The aluminum production rate (P) shall be determined by dividing 
720 hours into the weight of aluminum tapped from the affected facility 
during a period of 30 days before and including the final run of a 
performance test.
    (ii) The aluminum equivalent production rate (Pe) for 
anodes shall be determined as 2 times the average weight of anode 
produced during a representative oven cycle divided by the cycle time. 
An owner or operator may establish a multiplication factor other than 2 
by submitting production records of the amount of aluminum produced and 
the concurrent weight of anodes consumed by the potrooms.
    (5) Method 9 and the procedures in Sec. 60.11 shall be used to 
determine opacity.

[54 FR 6669, Feb. 14, 1989, as amended at 65 FR 61757, Oct. 17, 2000]