NF ISO 8573-2
Compressed air - Part 2 : test methods for oil aerosol content
ISO 8573-2:2007 specifies test methods for the sampling and quantitative analysis of oil aerosols and liquid oil that can typically be present in compressed air. Test methods for oil vapour are excluded from ISO 8573-2:2007 as they are covered by ISO 8573-5.Two different methods are described, method A and method B. Method B is subdivided into two parts to clearly distinguish between procedures for obtaining the quantity of oil for analysis.
ISO 8573-2:2007 specifies test methods for the sampling and quantitative analysis of oil aerosols and liquid oil that can typically be present in compressed air. Test methods for oil vapour are excluded from ISO 8573-2:2007 as they are covered by ISO 8573-5.
Two different methods are described, method A and method B. Method B is subdivided into two parts to clearly distinguish between procedures for obtaining the quantity of oil for analysis.
ISO 8573-2:2018 specifies test methods for the sampling and quantitative analysis of liquid oil and oil aerosols that can typically be present in compressed air. Test methods for oil vapour are excluded from this document as they are covered by ISO 8573‑5. Two different methods are described, Method A and Method B. Method B is subdivided into two parts to clearly distinguish between procedures for obtaining the quantity of oil for analysis. Method A describes an oil collection technique using inline coalescing filters whereas Method B utilizes sampling discs in a holder from which the collected oil is extracted with a solvent and analysed by infrared spectrometry or gas chromatography with flame ionization detection. ISO 8573-2:2018 also includes descriptions of alternative oil aerosol detection by the use of indicator type devices, see Annex E.
- Avant-proposiv
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1 Domaine d'application1
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2 Références normatives1
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3 Termes et définitions1
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4 Unités2
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5 Conditions de référence2
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6 Guide pour le choix de la méthode d'essai2
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7 Description générale de l'appareillage d'essai et des méthodes d'essai3
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7.1 Méthode A3
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7.2 Méthode B5
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8 Mode opératoire d'essai - Méthode A9
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8.1 Généralités9
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8.2 Mode opératoire de mesurage9
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8.3 Calcul des résultats d'essai12
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8.4 Présentation des résultats12
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9 Modes opératoires d'essai - Méthode B12
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9.1 Vapeur d'huile12
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9.2 Vitesse maximale de l'air12
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9.3 Température13
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9.4 Manipulation13
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9.5 Échantillon zéro13
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9.6 Préparation13
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9.7 Méthode d'essai B113
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9.8 Méthode d'essai B214
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10 Mode opératoire d'analyse pour les méthodes B1 et B214
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10.1 Principe14
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10.2 Solvant15
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10.3 Appareillage15
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10.4 Mode opératoire - Analyse de l'huile recueillie par la membrane15
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11 Traitement des résultats d'essai17
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11.1 Préparation du graphique d'étalonnage17
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11.2 Calcul des résultats d'essai19
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12 Incertitude de la méthode19
- Annexe A (informative) Rapport d'essai type20
- Annexe B (informative) Disposition de l'appareillage d'essai et détails dimensionnels21
- Bibliographie26
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