Section 326 IAC 8-13-5 - Test proceduresAuthority: IC 13-14-8; IC 13-17-3-4; IC 13-17-3-11
Affected: IC 13-15; IC 13-17
Sec. 5.
(a) Windbox gas VOC emission tests are required under the following conditions: (1) An initial test as required in section 4(d) or 8 of this rule.(2) When there is a change in the control measure since the most recent compliance test.(3) When required by the department or the U.S. EPA.(b) Compliance with the emission limits in section 3 of this rule shall be demonstrated according to testing procedures in 326 IAC 3-5 or 326 IAC 3-6-3 and 326 IAC 3-6-5, or Method 25A "Determination of Total Gaseous Organic Concentration Using a Flame Ionization Analyzer", 40 CFR 60, Appendix A*, as applicable.(c) Owners or operators of a sintering process in which the windbox gas exhausts into the atmosphere through more than one (1) stack shall test each stack for compliance with the emission limit in section 3 of this rule unless there is a demonstration that satisfies the commissioner that sampling a lesser number of stacks yields results comparable to those that will be obtained by testing all stacks. Owners or operators of a sintering process who intend to submit such demonstration shall include the demonstration in the protocol required in section 4 of this rule.(d) If sinter burden oil and grease content control is the selected control measure and the owner or operator chooses to monitor the sinter burden oil and grease content, the operating parameter shall be determined as follows: (1) Collect the sinter burden sample at a location such that the sample is representative of the sinter burden before it goes through the sintering process.(2) Collect a sinter burden grab sample for analysis at least every fifteen (15) minutes for the duration of the test. The first sample shall be taken at the beginning of the test run. Each sample shall weigh at least one (1) pound.(3) Analyze each sample for oil and grease content using procedures in Method 9071A "Oil and Grease Extraction Method for Sludge Samples" of U.S. EPA publication "Test Methods for Evaluating Solid Wastes", SW-846, Volume 1C, Chapter 5, revised September 1994*; n-hexane shall be used instead of trichlorotrifluorethane as an extraction reagent.(4) Estimate oil and grease content as percent by weight of the sinter burden to three (3) places after the decimal.(5) Analyze oil and grease data outliers using Chauvenet's Criterion at Page I-7 in "Guide to Statistical Problem Solving" prepared for U.S. EPA, Research Triangle Park, North Carolina, under contract number 68-02-1505, June 1975* or an alternative acceptable statistical procedure. Remove outliers that result from any cause other than the normal characteristics of the sinter burden.(6) Repeat the procedures in subdivisions (1) through (4) if the number of representative data is less than ten (10).(7) Using representative oil and grease content data from subdivisions (4) through (6), determine the oil content average and standard deviation as follows: Equation 1:
Average oil and grease content, percent (%) by weight = SIGMA x/n
Equation 2:
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Where: n = Number of samples.
s = Standard deviation of oil and grease content percent by weight.
x = Percent oil and grease in each sample.
(8) Calculate oil and grease content as percent by weight sinter burden as follows: Equation 3:
Oil and grease content (percent (%) by weight) = average oil content (%) + one (1) standard deviation (%)
(9) Calculate average sinter burden throughput during the test in tons.(10) Calculate oil and grease content as an operating parameter in pounds as follows: Equation 4:
Operating parameter oil content (pounds) = (oil and grease content (percent (%) by weight from Equation 3) × 1/100) × average sinter burden throughput (tons) × 2,000 pounds/ton
(11) If the operating parameter in Equation 4 corresponds to a VOC emission rate in pounds VOC per ton sinter produced that is less than the VOC emission rates in pounds VOC per ton sinter produced in section 3 of this rule, calculate the operating parameter to represent the appropriate VOC emission rates in pounds VOC per ton sinter produced in section 3 of this rule and explain the basis as provided in section 4(d)(4)(E) of this rule.(e) An owner or operator may request approval of an alternative oil and grease sampling and analysis procedure by submitting to the department a written request. The request shall include all of the following: (1) Sampling procedure that includes all of the following:(A) A list of raw materials that will be sampled.(B) Sampling equipment to be used.(D) Number of samples to be collected.(F) Amount of sample to be collected.(2) Analytical procedure that includes all of the following: (A) Sample preparation procedure.(B) Analytical equipment.(E) Accuracy and precision of measurements.(F) Procedure to identify unrepresentative oil and grease content values.(G) Expected variation in pounds in the oil and grease content value as determined by subsection (d)(10). *These documents are incorporated by reference. Copies are available for review and copying at the Indiana Department of Environmental Management, Office of Air Quality, Indiana Government Center-North, Tenth Floor, 100 North Senate Avenue, Indianapolis, Indiana 46204.
Air Pollution Control Board; 326 IAC 8-13-5; filed Jun 24, 1998, 5:46 p.m.: 21 IR 4199; errata filed Feb 9, 1999, 4:04 p.m.: 22 IR 2006; errata filed Dec 12, 2002, 3:35 p.m.: 26 IR 1569; filed Aug 26, 2004, 11:30 a.m.: 28 IR 69