ISO 789-4:1986
ISO 789-4:1986

Status : Published (Under review)

This standard was last reviewed and confirmed in 2023. Therefore this version remains current.
Format Language
std 1 63 PDF
std 2 63 Paper
  • CHF63
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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.

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General information

  •  : Published
     : 1986-10
    : International Standard confirmed [90.93]
  •  : 2
     : 7
  • ISO/TC 23/SC 2
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