ISO 9835:1993

Ambient air — Determination of a black smoke index

Publication date: Mar 10, 1993

General information

Current stage: 90.93 Effective date: Sep 14, 2022

Originator: ISO

Owner: ISO/TC 146/SC 3

Type: International Standard

ICS: 13.040.20

Languages: English

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Status: Published

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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

NOW

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

National adoptions

SSH ISO 9835:1996

DPS

Ambient air — Determination of a black smoke index

60.60 Standard published

DPS/KT 230 more

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