CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS (Parts 50–99) > PART 86—CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES > SUBPART N—Emission Regulations for New Otto-Cycle and Diesel Heavy-Duty Engines; Gaseous and Particulate Exhaust Test Procedures (§86.1301 to §86.1380-2004) > 86.1327-98—Engine dynamometer test procedures; overview.

86.1327-98—Engine dynamometer test procedures; overview.

Section 86.1327-98 includes text that specifies requirements that differ from § 86.1327-96. Where a paragraph in § 86.1327-96 is identical and applicable to § 86.1327-98, this may be indicated by specifying the corresponding paragraph and the statement “[Reserved]. For guidance see § 86.1327-96 ”.
(a) through (d)(3) [Reserved]. For guidance see § 86.1327-96.
(d) (4) Additional accessories (e.g., oil cooler, alternators, air compressors, etc.) may be installed or their loading simulated if typical of the in-use application. This loading shall be parasitic in nature and, if used, shall be applied during all engine testing operations, including mapping. The accessory work performed shall not be included in the integrated work used in emissions calculations.
(d) (5) through (f) [Reserved]. For guidance see § 86.1327-96.

Code of Federal Regulations

[62 FR 47130, Sept. 5, 1997]