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ISO 8672:1993

Air quality — Determination of the number concentration of airborne inorganic fibres by phase contrast optical microscopy — Membrane filter method

Jan 28, 1993
95.99 Withdrawal of Standard   Apr 29, 2014

General information

95.99     Apr 29, 2014

ISO

ISO/TC 146/SC 2

International Standard

13.040.30  

French   English  

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Scope

The principle of the method specified is collecting a sample by drawing a measured quantity of air through a membrane filter by means of a battery-powered sampling pump, transforming the filter from an opaque membrane into a homogeneous optically transparent specimen, sizing and counting the fibres using a phase contrast microscope. The results are expressed as fibres per cubic centimetre of air, calculated from the number of fibres on the filter and the measured volume of air sampled. Limitations of the method are stated.

Life cycle

NOW

WITHDRAWN
ISO 8672:1993
95.99 Withdrawal of Standard
Apr 29, 2014

REVISED BY

PUBLISHED
ISO 8672:2014

National adoptions

SSH ISO 8672:2000  
DPS

Air quality — Determination of the number concentration of airborne inorganic fibres by phase contrast optical microscopy — Membrane filter method

95.99 Withdrawal of Standard

DPS/KT 230 more