New Mexico Administrative Code
Title 20 - ENVIRONMENTAL PROTECTION
Chapter 2 - AIR QUALITY (STATEWIDE)
Part 1 - GENERAL PROVISIONS
Section 20.2.1.116 - SIGNIFICANT FIGURES
Universal Citation: 20 NM Admin Code 20.2.1.116
Current through Register Vol. 35, No. 18, September 24, 2024
A. All emissions standards are deemed to have at least two significant figures, but not more than three significant figures.
B. At least five significant figures shall be retained in all intermediate calculations.
C. In calculating emissions to determine compliance with an emission standard, the following rounding off procedures shall be used:
(1) if the first digit to be
discarded is less than the number five, the last digit retained shall not be
changed;
(2) if the first digit
discarded is greater than the number five, or if it is the number five followed
by at least one digit other than the number zero, the last figure retained
shall be increased by one unit; and
(3) if the first digit discarded is exactly
the number five, followed only by zeros, the last digit retained shall be
rounded upward if it is an odd number, but no adjustment shall be made if it is
an even number.
D. The final result of the calculation shall be expressed in the units of the standard.
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