Stack emission tests for particulate matter shall be undertaken by generally recognized standards or methods of measurement. Methods found in the ASME Test Code for Determining Dust Concentrations in Gas Streams, PTC 27-1957, and the Los Angeles County Source Testing Manual shall be used, but these may be modified or adjusted by the Building Commissioner to suit specific sampling conditions or needs based upon good practice, judgment and experience. Updating of these standards and modifications thereof shall be published in Rules and Regulations of the Air Pollution Control Center.
(Ord. 221-70. Passed 7-19-71.)