Source: https://www.law.cornell.edu/cfr/text/40/50.3
Timestamp: 2017-04-25 16:37:58
Document Index: 28391515

Matched Legal Cases: ['art 50', '§ 50', '§ 50', '§ 50', '§ 50', '§ 50', 'art 50']

40 CFR 50.3 - Reference conditions. | US Law | LII / Legal Information Institute
CFR › Title 40 › Chapter I › Subchapter C › Part 50 › Section 50.3 40 CFR 50.3 - Reference conditions.
§ 50.3 Reference conditions.
All measurements of air quality that are expressed as mass per unit volume (e.g., micrograms per cubic meter) other than for particulate matter (PM2.5) standards contained in §§ 50.7, 50.13, and 50.18, and lead standards contained in § 50.16 shall be corrected to a reference temperature of 25 (deg) C and a reference pressure of 760 millimeters of mercury (1,013.2 millibars). Measurements of PM2.5 for purposes of comparison to the standards contained in §§ 50.7, 50.13, and 50.18, and of lead for purposes of comparison to the standards contained in § 50.16 shall be reported based on actual ambient air volume measured at the actual ambient temperature and pressure at the monitoring site during the measurement period.
[ 78 FR 3277, Jan. 15, 2013]
Title 40 published on 2015-08-22The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR Part 50 after this date.2017-03-28; vol. 82 # 58 - Tuesday, March 28, 201782 FR 15310 - Response to December 9, 2013, Clean Air Act Section 176A Petition From Connecticut, Delaware, Maryland, Massachusetts, New Hampshire, New York, Pennsylvania, Rhode Island and Vermont
40 CFR 52.800 — Original Identification of Plan Section.