ISO 8672:1993

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

Publication date: 28 jan 1993

95.99 Withdrawal of Standard 29 pri 2014

General information

Current stage: 95.99 Effective date: 29 pri 2014

Originator: ISO

Owner: ISO/TC 146/SC 2

Type: International Standard

ICS: 13.040.30

Gjuha: frëngjisht anglisht

Buying

Statusi: Shfuqizuar

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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WITHDRAWN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
29 pri 2014

REVISED BY

PUBLISHED
ISO 8672:2014

National adoptions

SSH ISO 8672:2000

DPS

Cilësia e ajrit - Përcaktimi i përqëndrimit numerik të fibrave inorganike të formuara në ajër me metodën mikroskopike me kontrast faze - Metoda me membranë filtruese

95.99 Withdrawal of Standard

DPS/KT 230 më tepër