ISO 789-4:1986

Agricultural tractors — Test procedures — Part 4: Measurement of exhaust smoke

Publication date: Oct 16, 1986

General information

Current stage: 90.20 Effective date: Jan 15, 2026

Originator: ISO

Owner: ISO/TC 23/SC 2

Type: International Standard

ICS: 13.040.50 65.060.10

Languages: French English

Buying

Status: Published

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CD - ALL 7,576

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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WITHDRAWN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
90.20 Standard under periodical review
Jan 15, 2026

National adoptions

SSH ISO 789-4:1986

DPS

Agricultural tractors — Test procedures — Part 4: Measurement of exhaust smoke

60.60 Standard published

DPS/KT 144 more

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