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ISO 789-4:1986

Agricultural tractors — Test procedures — Part 4: Measurement of exhaust smoke ISO 789-4:1986

Publication date:   Oct 16, 1986

General information

90.60   Close of review   Jun 5, 2026

ISO

ISO/TC 23/SC 2 Common tests

International Standard

13.040.50   Transport exhaust emissions | 65.060.10   Agricultural tractors and trailed vehicles

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Published

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 789-4:1982

NOW

PUBLISHED
ISO 789-4:1986
90.60 Close of review
Jun 5, 2026




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