40 CFR Part 86, Appendix II to Part 86 - Temperature Schedules

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View PDF at GPO Pt. 86, App. II
Appendix II to Part 86—Temperature Schedules
(a) Ambient temperature cycle for the diurnal emission portion of the evaporative emission test (see § 86.133).
Table I—Temperature Versus Time Sequence
Use linear interpolation between hourly temperatures
Time (min) Temp. (°F) Time (min) Temp. (°F) Time (min) Temp. (°F)
0 72.0 60 72.5 120 75.5
180 80.3 240 85.2 300 89.4
360 93.1 420 95.1 480 95.8
540 96.0 600 95.5 660 94.1
720 91.7 780 88.6 840 85.5
900 82.8 960 80.9 1020 79.0
1080 77.2 1140 75.8 1200 74.7
1260 73.9 1320 73.3 1380 72.6
1440 72.0 1500 72.5 1560 75.5
1620 80.3 1680 85.2 1740 89.4
1800 93.1 1860 95.1 1920 95.8
1980 96.0 2040 95.5 2100 94.1
2160 91.7 2220 88.6 2280 85.5
2340 82.8 2400 80.9 2460 79.0
2520 77.2 2580 75.8 2640 74.7
2700 73.9 2760 73.3 2820 72.6
2880 72.0 2940 72.5 3000 75.5
3060 80.3 3120 85.2 3180 89.4
3240 93.1 3300 95.1 3360 95.8
3420 96.0 3480 95.5 3540 94.1
3600 91.7 3660 88.6 3720 85.5
3780 82.8 3840 80.9 3900 79.0
3960 77.2 4020 75.8 4080 74.7
4140 73.9 4200 73.3 4260 72.6
4320 72.9
[58 FR 16070, Mar. 24, 1993]

Title 40 published on 2014-07-01

The following are only the Rules published in the Federal Register after the published date of Title 40.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-08-08; vol. 79 # 153 - Friday, August 8, 2014
    1. 79 FR 46356 - Emergency Vehicle Rule—SCR Maintenance and Regulatory Flexibility for Nonroad Equipment
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Final rule.
      This rule is effective on September 8, 2014.
      40 CFR Parts 86 and 1039

Title 40 published on 2014-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR 86 after this date.

  • 2014-08-08; vol. 79 # 153 - Friday, August 8, 2014
    1. 79 FR 46356 - Emergency Vehicle Rule—SCR Maintenance and Regulatory Flexibility for Nonroad Equipment
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Final rule.
      This rule is effective on September 8, 2014.
      40 CFR Parts 86 and 1039