Reference number
ISO 789-4:1986
© ISO 2025
International Standard
ISO 789-4:1986
Agricultural tractors — Test procedures — Part 4: Measurement of exhaust smoke
Edition 2
1986-10
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Published (Edition 2, 1986)
This publication was last reviewed and confirmed in 2023. Therefore this version remains current.

Abstract

This second edition cancals and replaces the first edition (1982). This part is the fourth of a series of eight. Specifies a method of measuring the smoke emiited by the engines of tractors operating at a steady speed. Annex A gives characteristics of opacimeters; installation and use of theopacimeter is described in annex B; annex C tabulates reference fuel specifications; annex D includes an specimen test report.

General information

  • Status
     : Published
    Publication date
     : 1986-10
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 2
    Number of pages
     : 7
  • Technical Committee :
    ISO/TC 23/SC 2
  • RSS updates

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