Published
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.
Revises
ISO 789-4:1982
PUBLISHED
ISO 789-4:1986
90.60
Close of review
Mar 5, 2021
Agricultural tractors — Test procedures — Part 4: Measurement of exhaust smoke
60.60 Standard published
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