ISO 8573-4:2019

ISO 8573-4:2019

February 2019
International standard Current

Compressed air - Contaminant measurement - Part 4: Particle content

This document provides a method for sampling compressed air and a guide for choosing suitable measuring equipment to determine its particle size and concentration by number (to be referenced as "concentration" throughout this document). It also describes the limitations of the various measurement methods and describes the evaluation and uncertainty considerations.This document will report the particle size and concentration of all types of particle combined and does not aim to be able to segregate the separate solid and liquid particle fractions. When it is required that the concentration of a specific fraction is to be determined then recourse to the relevant standard method from the ISO 8573 series is recommended.NOTE 1 The test methods described in this document are those suitable for determining the purity classes given in ISO 8573‑1.NOTE 2 Particle content determined as concentration by mass is dealt with in ISO 8573‑8.NOTE 3 This document does not address instances where non-isothermal conditions exist, and separate arrangements should be made where particles may be formed by vapour condensation or lost through evaporation.

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Main informations

Collections

International ISO standards

Publication date

February 2019

Number of pages

26 p.

Reference

ISO 8573-4:2019

ICS Codes

71.100.20   Gases for industrial application

Print number

1
Sumary
Compressed air - Contaminant measurement - Part 4: Particle content

This document provides a method for sampling compressed air and a guide for choosing suitable measuring equipment to determine its particle size and concentration by number (to be referenced as "concentration" throughout this document). It also describes the limitations of the various measurement methods and describes the evaluation and uncertainty considerations.

This document will report the particle size and concentration of all types of particle combined and does not aim to be able to segregate the separate solid and liquid particle fractions. When it is required that the concentration of a specific fraction is to be determined then recourse to the relevant standard method from the ISO 8573 series is recommended.

NOTE 1 The test methods described in this document are those suitable for determining the purity classes given in ISO 8573‑1.

NOTE 2 Particle content determined as concentration by mass is dealt with in ISO 8573‑8.

NOTE 3 This document does not address instances where non-isothermal conditions exist, and separate arrangements should be made where particles may be formed by vapour condensation or lost through evaporation.

Replaced standards (2)
ISO 8573-4:2001
June 2001
International standard Cancelled
Compressed air - Part 4 : test methods for solid particle content

La présente partie de l'ISO 8573 fournit des lignes directrices pour la sélection des méthodes appropriées, parmi celles disponibles, pour la détermination de la concentration de particules solides dans l'air comprimé, exprimée en nombre de particules solides selon leur classe respective. Elle spécifie les limites des différentes méthodes. La présente partie de l'ISO 8573 identifie les techniques de prélèvement et les méthodes de mesurage, toutes basées sur le comptage des particules, et elle décrit l'évaluation, les considérations de l'incertitude, et le rapport des paramètres de pureté de l'air en ce qui concerne les particules solides. NOTE 1 Les méthodes d'essai décrites dans la présente partie de l'ISO 8573 sont appropriées pour la détermination des classes de pureté données dans l'ISO 8573-1. NOTE 2 La teneur en particules déterminée par concentration massique est traitée dans l'ISO 8573-8.

ISO 8573-4/AC1:2002
April 2002
International standard Cancelled
Technical corrigendum 1 to standard ISO 8573-4:2001

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