NDAC 33.1-24-02-174
Test methods and procedures
Cite as N.D. Admin. Code § 33.1-24-02-174
1.
Each remanufacturer or other person that stores or treats the hazardous secondary material
subject to the provisions of sections 33.1-24-02-170 through 33.1-24-02-179 shall comply with
the test methods and procedural requirements provided in this section.
2.
When a closed-vent system is tested for compliance with no detectable emissions, as required
in subsection 12 of section 33.1-24-02-173, the test must comply with the following
requirements:
a.
Monitoring must comply with Reference Method 21 in 40 CFR part 60.
b.
The detection instrument must meet the performance criteria of Reference Method 21.
c.
The instrument must be calibrated before use on each day of its use by the procedures
specified in Reference Method 21.
d.
Calibration gases must be:
(1)
Zero air (less than ten parts per million hydrocarbon in air).
(2)
A mixture of methane or n-hexane and air at a concentration of approximately, but
less than, ten thousand parts per million methane or n-hexane.
e.
The background level must be determined as set forth in Reference Method 21.
f.
The instrument probe must be traversed around all potential leak interfaces as close to
the interface as possible as described in Reference Method 21.
g.
The arithmetic difference between the maximum concentration indicated by the
instrument and the background level is compared with five hundred parts per million for
determining compliance.
3.
Performance tests to determine compliance with subsection 1 of section 33.1-24-02-172 and
with the total organic compound concentration limit of subsection 3 of section 33.1-24-02-173
must comply with the following:
a.
Performance tests to determine total organic compound concentrations and mass flow
rates entering and exiting control devices must be conducted and data reduced in
accordance with the following reference methods and calculation procedures:
(1)
Method 2 in 40 CFR part 60 for velocity and volumetric flow rate.
(2)
Method 18 or Method 25A in 40 CFR part 60, appendix A, for organic content. If
Method 25A is used, the organic hazardous air pollutant used as the calibration gas
must be the single organic hazardous air pollutant representing the largest percent
by volume of the emissions. The use of Method 25A is acceptable if the response
from the high-level calibration gas is at least twenty times the standard deviation of
the response from the zero calibration gas when the instrument is zeroed on the
most sensitive scale.
(3)
Each performance test must consist of three separate runs; each run conducted for
at least one hour under the conditions that exist when the hazardous secondary
material management unit is operating at the highest load or capacity level
reasonably expected to occur. For the purpose of determining total organic
compound concentrations and mass flow rates, the average of results of all runs
shall apply. The average must be computed on a time-weighted basis.
(4)
Total organic mass flow rates must be determined by the following equation:
(a)
For sources utilizing Method 18.
where:
Eh =
Total organic mass flow rate, kg/h;
Q2sd =
Volumetric flow rate of gases entering or exiting control device, as
determined by Method 2, dscm/h;
n =
Number of organic compounds in the vent gas;
Ci =
Organic concentration in ppm, dry basis, of compound i in the vent gas,
as determined by Method 18;
MWi = Molecular weight of organic compound i in the vent gas, kg/kg-mol;
0.0416 = Conversion factor for molar volume, kg-mol/m3 (@ 293 K and 760 mm
Hg);
10-6 =
Conversion from ppm.
(b)
For sources utilizing Method 25A.
Eh = (Q)(C)(MW)(0.0416)(10-6)
where:
Eh = Total organic mass flow rate, kg/h;
Q = Volumetric flow rate of gases entering or exiting control device, as
determined by Method 2, dscm/h;
C = Organic concentration in ppm, dry basis, as determined by Method 25A;
MW = Molecular weight of propane, 44;
0.0416 = Conversion factor for molar volume, kg-mol/m3 (@ 293 K and 760
mm Hg);
10-6 = Conversion from ppm.
(5)
The annual total organic emission rate must be determined by the following
equation:
EA = (Eh)(H)
where:
EA = Total organic mass emission rate, kg/y;
Eh = Total organic mass flow rate for the process vent, kg/h;
H = Total annual hours of operations for the affected unit, h.
(6)
Total organic emissions from all affected process vents at the facility must be
determined by summing the hourly total organic mass emission rates (Eh as
determined in paragraph 4) and by summing the annual total A organic mass
emission rates (EA, as determined in paragraph 5) for all affected process vents at
the facility.
b.
The remanufacturer or other person that stores or treats the hazardous secondary
material shall record such process information as may be necessary to determine the
conditions of the performance tests. Operations during periods of startup, shutdown, and
malfunction must not constitute representative conditions for the purpose of a
performance test.
c.
The remanufacturer or other person that stores or treats the hazardous secondary
material at an affected facility shall provide, or cause to be provided, performance testing
facilities as follows:
(1)
Sampling ports adequate for the test methods specified in subdivision a.
(2)
Safe sampling platforms.
(3)
Safe access to sampling platforms.
(4)
Utilities for sampling and testing equipment.
d.
For the purpose of making compliance determinations, the time-weighted average of the
results of the three runs must apply. If a sample is accidentally lost or conditions occur in
which one of the three runs must be discontinued because of forced shutdown, failure of
an irreplaceable portion of the sample train, extreme meteorological conditions, or other
circumstances beyond the remanufacturer's or other person's that stores or treats the
hazardous secondary material control, compliance, upon the department's approval, may
be determined using the average of the results of the two other runs.
4.
To show that a process vent associated with a hazardous secondary material distillation,
fractionation, thin-film evaporation, solvent extraction, or air or steam stripping operation is not
subject to the requirements of section 33.1-24-02-170 through 33.1-24-02-179, the
remanufacturer or other person that stores or treats the hazardous secondary material shall
make an initial determination that the time-weighted, annual average total organic
concentration of the material managed by the hazardous secondary material management
unit is less than ten parts per million weight using one of the following two methods:
a.
Direct measurement of the organic concentration of the material using the following
procedures:
(1)
The remanufacturer or other person that stores or treats the hazardous secondary
material shall take a minimum of four grab samples of material for each material
stream managed in the affected unit under process conditions expected to cause
the maximum material organic concentration.
(2)
For material generated onsite, the grab samples must be collected at a point before
the material is exposed to the atmosphere such as in an enclosed pipe or other
closed system that is used to transfer the material after generation to the first
affected distillation, fractionation, thin-film evaporation, solvent extraction, or air or
steam stripping operation. For material generated offsite, the grab samples must be
collected at the inlet to the first material management unit that receives the material
provided the material has been transferred to the facility in a closed system such as
a tank truck and the material is not diluted or mixed with other material.
(3)
Each sample must be analyzed and the total organic concentration of the sample
must be computed using Method 9060A (as incorporated by reference in section
33.1-24-01-05) of "Test Methods for Evaluating Solid Waste, Physical/Chemical
Methods," environmental protection agency Publication SW-846, or analyzed for its
individual organic constituents.
(4)
The arithmetic mean of the results of the analyses of the four samples applies for
each material stream managed in the unit in determining the time-weighted, annual
average total organic concentration of the material. The time-weighted average is to
be calculated using the annual quantity of each material stream processed and the
mean organic concentration of each material stream managed in the unit.
b.
Using knowledge of the material to determine that its total organic concentration is less
than ten parts per million weight. Documentation of the material determination is
required. Examples of documentation that must be used to support a determination
under this provision include production process information documenting that no organic
compounds are used, information that the material is generated by a process that is
identical to a process at the same or another facility that has previously been
demonstrated by direct measurement to generate a material stream having a total
organic content less than ten parts per million weight, or prior speciation analysis results
on the same material stream where it can also be documented that no process changes
have occurred since that analysis that could affect the material total organic
concentration.
5.
The determination that distillation, fractionation, thin-film evaporation, solvent extraction, or air
or steam stripping operations manage hazardous secondary materials with time-weighted,
annual average total organic concentrations less than ten parts per million weight must be
made as follows:
a.
By the effective date that the facility becomes subject to the provisions of sections
33.1-24-02-170 through 33.1-24-02-179 or by the date when the material is first
managed in a hazardous secondary material management unit, whichever is later;
b.
For continuously generated material, annually; or
c.
Whenever there is a change in the material being managed or a change in the process
that generates or treats the material.
6.
When a remanufacturer or other person that stores or treats the hazardous secondary
material and the department do not agree on whether a distillation, fractionation, thin-film
evaporation, solvent extraction, or air or steam stripping operation manages a hazardous
secondary material with organic concentrations of at least ten parts per million weight based
on knowledge of the material, the dispute may be resolved by using direct measurement as
specified at subdivision a of subsection 4.