TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE B: AIR POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER c: EMISSION STANDARDS AND LIMITATIONS FOR STATIONARY SOURCES
PART 211 DEFINITIONS AND GENERAL PROVISIONS
SECTION 211.750 BRITISH THERMAL UNIT
SUBTITLE B: AIR POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER c: EMISSION STANDARDS AND LIMITATIONS FOR STATIONARY SOURCES
PART 211 DEFINITIONS AND GENERAL PROVISIONS
SECTION 211.750 BRITISH THERMAL UNIT
Section 211.750 British Thermal Unit
"British Thermal Unit" means the quantity of heat required to raise one pound of water from 60 º F to 61º F (abbreviated btu).
(Source: Added at 17 Ill. Reg. 16504, effective September 27, 1993)