Indiana Administrative Code
Title 326 - AIR POLLUTION CONTROL DIVISION
Article 8 - VOLATILE ORGANIC COMPOUND RULES
Rule 20 - Industrial Wastewater
Section 20-7 - Approved test methods
Current through March 20, 2024
Authority: IC 13-14-8; IC 13-17-3-4; IC 13-17-3-11
Affected: IC 13-15; IC 13-17
Sec. 7.
Compliance with the emission specifications, vapor control system efficiency, and certain control requirements, inspection requirements, and exemption criteria of sections 4 through 6 of this rule and section 3(2) of this rule (relating to control requirements, alternate control requirements, inspection and monitoring requirements, and exemptions) shall be determined by applying one (1) or more of the following test methods and procedures, as appropriate:
(1) Gas flow rate. U.S. EPA 40 CFR 60 Methods 1, 2, 3, and 4* are used for determining gas flow rates, as necessary.
(2) Concentration of affected VOCs in a gas stream shall be determined as follows:
(3) Performance test for control devices are as follows:
(4) Vapor pressure shall be determined using standard reference texts or as specified in 326 IAC 8-9-3(5).
(5) Use U.S. EPA 40 CFR 60 Method 21 for determining VOC leaks and for monitoring a carbon canister in accordance with section 4(e)(4) of this rule.
(6) Use one (1) of the following for determining VOC concentration of wastewater samples:
In the event of any conflict, U.S. EPA 40 CFR 60 Method 25D* takes precedence.
(7) Flow rate measurements shall be taken at the same time as the concentration measurements.
(8) Minor modifications to these test methods may be used, if approved by U.S. EPA. The approval shall occur when the department is informed, in writing, that U.S. EPA has no objections to the minor modifications to the test methods.
(9) Test methods other than those specified in this section may be used if validated by U.S. EPA 40 CFR 63 Method 301*.
*These documents are incorporated by reference. Copies may be obtained from the Government Printing Office, 732 North Capitol Street NW, Washington, D.C. 20401 or 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.