California Code of Regulations
Title 17 - Public Health
Division 3 - Air Resources
Chapter 1 - Air Resources Board
Subchapter 8 - Compliance with Nonvehicular Emission Standards
Article 2 - Test Methods for Determining Compliance with District Nonvehicular Emission Standards
Section 94117 - Method 2a-Gas Volume Through Pipes and Small Ducts

The test method for determining gas flow rates in pipes and small ducts is set forth in the Air Resources Board's Method 2A, Direct Measurement of Gas Volumes Through Pipes and Small Ducts, adopted March 28, 1986, as last amended July 1, 1999, which is incorporated herein by reference.

1. New section filed 5-7-86; effective thirtieth day thereafter (Register 86, No. 19).
2. Amendment filed 1-25-2000; operative 2-24-2000 (Register 2000, No. 4).

Note: Authority cited: Sections 39600, 39601 and 39607, Health and Safety Code. Reference: Sections 39515, 39516, 39605, 39607 and 40001, Health and Safety Code.