(T.) avE.=.

(VAP)

lb-inHg

sec lb mole-°R-inH2O,

these units are used.

CI Concentration of beryllium found in sample, μg/ml.

V=Total volume of water used in sampling (impinger contents plus all wash amounts), ml.

C=Blank concentration of beryllium in water, μg/ml.

V. Total volume of acetone used in sampling (all wash amounts), ml.

Ca Blank concentration of beryllium in acetone, μg/ml.

6.7 Total beryllium emissions.-Calculate the total amount of beryllium emitted from each stack per day by equation 104-7. This equation is applicable for continuous operations. For cyclic operations, use only the time per day each stack is in operation. The total beryllium emissions from a source will be the summation of results from all stacks.

R=

5)'

1/2

when

where:

C, Pitot tube coefficient, dimensionless.
=Average stack gas temperature, °R.
Average square root of the velocity head
of stack gas (inH2O)1/2 (see figure 104-8).
P, Stack pressure, Pbar±static pressure, in
Hg.

M.-Molecular weight of stack gas (wet basis),
the summation of the products of the
molecular weight of each component
multiplied by its volumetric proportion
in the mixture, lb/lb-mole.

Figure 104-8 shows a sample recording sheet for velocity traverse data. Use the averages in the last two columns of figure 104-8 to determine the average stack gas velocity from equation 104-5.

6.6 Beryllium collected.-Calculate the total weight of beryllium collected by using equation 104-6.

W: (v.) avg. A. 86,400 seconds/day ·X· V total 10° μg/g

R=Rate of emission, g/day.

eq. 104-7

W-Total weight of beryllium collected, ug.

Vtotal Total volume of gas sample (stack conditions), ft3.

(5.) avg.=Average stack gas velocity, feet per second. A. Stack area, ft2.

6.8 Isokinetic variation (comparison of velocity of gas in probe tip to stack velocity).

Sampling time, sec.

(.) avg.

Average stack gas velocity, feet per second. 7. Evaluation of results-7.1 Determination of compliance.-7.1.1 Each performance test shall consist of three repetitions of the applicable test method. For the purpose of determining compliance with an applicable national emission standard, the average of results of all repetitions shall apply.

7.2 Acceptable isokinetic results.-7.2.1 The following range sets the limit on acceptable isokinetic sampling results:

If 90 percent I≤110 percent, the results are acceptable; otherwise, reject the test and repeat.

7. References.-1. Addendum to Specifications for Incinerator Testing at Federal Facilities, PHS, NCAPC, December 6, 1967.

2. Amos, M. D., and Willis, J. B., "Use of High-Temperature Pre-Mixed Flames in Atomic Absorption Spectroscopy," Spectrochim. Acta, 22: 1325, 1966.

3. Determining Dust Concentration in a Gas Stream, ASME Performance Test Code No. 27, New York, N.Y., 1957.

4. Devorkin, Howard et al., Air Pollution Source Testing Manual, Air Pollution Control District, Los Angeles, Calif. November 1963.

5. Fleet, B., Liberty, K. V., and West, T. S., "A Study of Some Matrix Effects in the Determination of Beryllium by Atomic Absorption Spectroscopy in the Nitrous Oxide-Acetylene Flame," Talanta, 17: 203, 1970.

6. Mark, L. S., Mechanical Engineers' Handbook, McGraw-Hill Book Co., Inc., New York, N.Y., 1951.

7. Martin, Robert M., Construction Details of Isokinetic Source Sampling Equipment, Environmental Protection Agency, APTD

0581.

8. Methods for Determination of Velocity, Volume, Dust and Mist Content of Gases, Western Precipitation Division of Joy Manufacturing Co., Los Angeles, Calif. Bulletin WP-50, 1968.

9. Perkin Elmer Standard Conditions (Rev. March 1971).

10. Perry, J. H., Chemical Engineers' Handbook, McGraw-Hill Book Co., Inc., New York, N.Y., 1960.

11. Rem, Jerome J., Maintenance, Calibration, and Operation of Isokinetic Source Sampling Equipment, Environmental Protection Agency, APTD-0576.

12. Shigehara, R. T., W. F. Todd, and W. S. Smith, Significance of Errors in Stack Sampling Measurements, Paper presented at the annual meeting of the Air Pollution Control Association, St. Louis, Mo., June 14-19, 1970. 13. Smith, W. S. et al., Stack Gas Sampling Improved and Simplified with New Equipment, APCA Paper No. 67-119, 1967.

14. Smith, W. S., R. T. Shigehara, and W. F. Todd, A Method of Interpreting Stack Sampling Data, Paper presented at the 63d annual meeting of the Air Pollution Control Association, St. Louis, Mo., June 14-19, 1970. 15. Specifications for Incinerator Testing at Federal Facilities, PHS, NCAPC, 1967.

16. Standard Method for Sampling Stacks for Particulate Matter, In: 1971 Book of ASTM standards, Part 23, Philadelphia. 1971, ASTM Designation D-2928-71.

17. Vennard, J. K. Elementary Fluid Mechanics. John Wiley and Sons, Inc., New York, 1947.

AUTHORITY: The provisions of this Part 76 issued under Executive Order 11507; Reorg. Plan 3 of 1970; 3 CFR, 1970 Comp.

SOURCE: The provisions of this Part 76 appear at 36 FR. 22417, Nov. 25, 1971, unless otherwise noted.

§ 76.1

Definitions.

As used in this part:

(a) "Executive Order" means Executive Order No. 11507.

(b) "Nonurban areas" means all areas other than urban areas.

(c) "Ringelmann Scale" means the Ringelmann Scale as published in the latest U.S. Bureau of Mines Information Circular entitled "Ringelmann Smoke Chart".

(d) "Administrator" means the Administrator of the Environmental Protection Agency or his authorized representative.

(e) "Urban areas" means those areas classified as urban in the latest available Federal census, or as Standard Metropolitan Statistical Areas.

(f) "Unit" means all indirect heat exchangers connected to a single stack.

(g) "Particulate matter" means any material, except uncombined water, that exists as a solid or liquid at standard conditions.

(h) "Standard conditions" means a temperature of 70° Fahrenheit and a pressure of 14.7 pounds per square inch, absolute.

(i) "Waste" means any solid, liquid, or gaseous substance, the disposal of which may create an air pollution problem.

It is the intent of these standards that emissions to the atmosphere from Federal facilities and buildings shall not be permitted if such emissions endanger health or welfare and that emissions which are likely to be injurious or hazardous to people, animals, vegetation, or property shall be minimized. § 76.3 Applicability.

(a) Unless otherwise indicated, the standards in this part apply to both new and existing Federal facilities and buildings.

(b) Except for discharges of radioactive effluents which are regulated by the Atomic Energy Commission, Federal facilities and buildings shall conform to the air pollution standards prescribed

by the State or community in which they are located. If State or local standards are not prescribed for a particular location, or if the State or local standards are less stringent than the standards prescribed herein, the standards in this part shall be applicable to discharges from such Federal facilities and buildings except as otherwise indicated.

(c) Temporary operations that may result in potential air pollution problems, such as those associated with research, development, test, evaluation, space, and military activities, shall be conducted with such precautions and safeguards as are needed to achieve the intent of these standards.

(d) The Administrator may, upon application of the relevant department, agency or establishment, exempt any Federal facility or building from any or all of these standards whenever he determines that the activities of such building or facility will not significantly conflict with the intent of the Executive order and that such an exemption is in the public interest.

§ 76.4 Combustion of fuel.

(a) The following standards apply to the combustion units of facilities and buildings having a heat input of less than 1,000 million B.t.u./hour, other than fireplaces, stoves, or grills burning wood or charcoal:

(1) Manually fired equipment shall not be installed as new or replacement equipment, except for the burning of anthracite, coke, or smokeless fuel.

(2) (i) For new units, except during startup, cleaning of fires, or soot blowing, the density of any emission to the atmosphere shall not exceed No. 1 on the Ringelmann Scale.

(ii) For existing units, except during startup, cleaning of fires, or soot blowing, the density of any emission to the

atmosphere shall not exceed No. 2 on the Ringelmann Scale.

(3) A photoelectric or other type smoke detector, recorder, or alarm shall be installed on units larger than ten million BTU per hour input, except where gas or light oil (No. 2 or lighter), is burned.

the

(4) During routine operation, emission of particles larger than 60 microns shall not normally occur.

(5) Means shall be provided in all newly constructed units and wherever practicable in existing units to allow the periodic measurement of flyash and other particulate matter.

(6) All new or replacement spreader stoker installations shall be of a type that automatically discharges ashes to the ash pit, either continuously or in very frequent small increments, and flyash shall be reinjected only from boiler passes.

(7) For units of less than 10 million BTU/hour heat input, the emission of flyash and other particulate matter shall not exceed 0.6 pounds of particulate matter per million BTU heat input, as measured by the American Society of Mechanical Engineers Power Test Code No. 27 for "Determining Dust Concentrations in a Gas Stream," or equivalent test method.

(8) For units between 10 million and 1,000 million BTU/hour heat input, the emission of flyash and other particulate matter shall not exceed that specified in figure 1, as measured by the test method specified in subparagraph (7) of this paragraph.

(b) For units having a heat input of more than 1,000 million BTU/hour, the appropriate department, agency, or establishment shall seek special advice from the Administrator with regard to smoke, flyash, and other particulate emissions.

1.0

0.9

0.8

0.7

0.6

0.5

0.4

MAXIMUM PARTICULATE EMISSIONPOUNDS PARTICULATE PER MILLION BTU HEAT INPUT

0.3

0.25

0,20

0.15

0.10

§ 76.5 Sulfur oxides.

(a) Combustion units of facilities or buildings not located in areas specified by the Administrator under paragraph (c) of this section and whose heat input is less than 1,000 million BTU/hour shall burn the lowest sulfur content fuel that is reasonably available. In determining reasonable availability, the factors to be considered include, among others, price, firmness of supply, extent of existing pollution, and assurance of

supply under adverse weather and natural disaster condtions.

(b) For combustion units or Federal facilities or buildings not located in areas specified by the Administrator under paragraph (c) of this section and whose heat input is more than 1,000 million BTU/hour, the appropriate department, agency, or establishment shall seek special advice from the Administrator with regard to sulfur-oxide emissions.

(c) (1) Effective October 1, 1969, combustion units of all Federal facilities or