Texas Administrative Code
Title 30 - ENVIRONMENTAL QUALITY
Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY
Chapter 115 - CONTROL OF AIR POLLUTION FROM VOLATILE ORGANIC COMPOUNDS
Subchapter F - MISCELLANEOUS INDUSTRIAL SOURCES
Division 1 - CUTBACK ASPHALT
Section 115.510 - Cutback Asphalt Definitions
Current through Reg. 50, No. 13; March 28, 2025
The following terms, when used in this division (relating to Cutback Asphalt), shall have the following meanings, unless the context clearly indicates otherwise. Additional definitions for terms used in this division are found in § 115.10 of this title (relating to Definitions), § 101.1 of this title (relating to Definitions), and § 3.2 of this title (relating to Definitions).
(1) Asphalt emulsion--An emulsion consisting of a continuous and discontinuous phase, composed principally of a semisolid or liquid asphaltic base, water, and an emulsifying agent.
(2) Conventional cutback asphalt-Any cutback asphalt which does not meet the definition of an exempt cutback asphalt.
(3) Cutback asphalt--Any asphaltic cement which has been liquified by blending with petroleum solvents (diluents).
(4) Exempt cutback asphalt--Any cutback asphalt which, when tested in accordance with American Society of Testing Materials Test Method D 402, "Distillation of Cutback Asphalt Products," as published in the 1997 edition of the Annual Book of ASTM Standards, shows the distillate fraction recovered up to 260 degrees Celsius (500 degrees Fahrenheit) to be less than 5.0% by volume of the total distillate recovered up to a temperature of 316 degrees Celsius (680 degrees Fahrenheit).
