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ISO 789-4:1986 Agricultural tractors -- Test procedures -- Part 4: Measurement of exhaust smoke
standard by International Organization for Standardization, 10/01/1986
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Full Description
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.