View Source

40 C.F.R. § 86.143-96

Calculations; evaporative emissions.

§ 86.143-96 Calculations; evaporative emissions.

(a) The following equations are used to calculate the evaporative emissions from gasoline- and methanol-fueled vehicles, and for gaseous-fueled vehicles.

(b) Use the measurements of initial and final concentrations to determine the mass of hydrocarbons and methanol emitted. For testing with pure gasoline, methanol emissions are assumed to be zero.

(1) For enclosure testing of diurnal, hot soak, and running loss emissions:

(i) Methanol emissions:

er24ja23.005.gif
Where: MCH3OH = Methanol mass change, µg. Vn = Net enclosure volume, ft , as determined by subtracting 50 ft (volume of vehicle with trunk and windows open) from the enclosure volume. A manufacturer may use the measured volume of the vehicle (instead of the nominal 50 ft ) with advance approval by the Administrator: Provided, the measured volume is determined and used for all vehicles tested by that manufacturer. TE = Temperature of sample withdrawn, R. f = Final sample. CMS = GC concentration of sample, µg/ml. 1 = First impinger. AV = Volume of absorbing reagent in impinger. 2 = Second impinger. VE = Volume of sample withdrawn, ft . Sample volumes must be corrected for differences in temperature to be consistent with determination of Vn, prior to being used in the equation. TSHED = Temperature of SHED, R. i = Initial sample. MCH3OH,out = mass of methanol exiting the enclosure, in the case of fixed-volume enclosures for diurnal emission testing, µg. MCH3OH,in = mass of methanol entering the enclosure, in the case of fixed-volume enclosures for diurnal emission testing, µg.
This document is only available to subscribers. Please log in or purchase access.
Purchase Login

About SCCE

The Society of Corporate Compliance and Ethics (SCCE) is a non-profit, member-based professional association. SCCE supports our members' work with education, news, and discussion forums. We are a community of leaders, defining and shaping the corporate compliance environment across a wide range of industries and geographic regions. In developing and maintaining effective ethics and compliance programs, our members strengthen and protect their companies.

952.933.4977

About HCCA

The Health Care Compliance Association (HCCA), is a 501(c)6 non-profit, member-based professional association. HCCA was established in 1996 and is headquartered in Minneapolis, MN. We provide training, certification, and other resources to over 10,000 members. Our members include compliance officers and staff from a wide range of organizations, including hospitals, research facilities, clinics and technology service providers.

952.988.0141

Facebook X LinkedIn
Copyright © 2024 by Society of Corporate Compliance and Ethics (SCCE) & Health Care Compliance Association (HCCA). No claim to original US Government works. All rights reserved. All information provided through this site, including without limitation all information such as the “look and feel” of the site, data files, graphics, text, photographs, drawings, logos, images, sounds, music, video or audio files on this site, is owned and/or licensed by SCCE & HCCA or its suppliers and is subject to United States and international copyright, trademark and other intellectual property laws. Any third party logos and/or content provided herein is owned by such third parties and is used by permission herein. Your use of this site to is subject to our Terms Of Use and Privacy Statement.
Cookie settings