ISO 9835:1993

Ambient air — Determination of a black smoke index ISO 9835:1993

Publication date:   Mar 10, 1993

General information

90.93 Standard confirmed   Sep 14, 2022

ISO

ISO/TC 146/SC 3 Ambient atmospheres

International Standard

13.040.20   Ambient atmospheres

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Scope

Specifies a method for measuring the black smoke index of an ambient air sample based on the staining effect of particles which is produced when a sample of air is drawn through a filter paper. Annex A describes conversion of absorption coefficient to traditional black smoke units.

Life cycle

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PUBLISHED
ISO 9835:1993
90.93 Standard confirmed
Sep 14, 2022