Reference number
Ïã¸ÛÁùºÏ²Ê¿ª½± 11500:2022
International Standard
Ïã¸ÛÁùºÏ²Ê¿ª½± 11500:2022
Hydraulic fluid power — Determination of the particulate contamination level of a liquid sample by automatic particle counting using the light-extinction principle
Edition 3
2022-12
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Ïã¸ÛÁùºÏ²Ê¿ª½± 11500:2022
77244
Published (Edition 3, 2022)

Ïã¸ÛÁùºÏ²Ê¿ª½± 11500:2022

Ïã¸ÛÁùºÏ²Ê¿ª½± 11500:2022
77244
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CHF 129
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Abstract

This document specifies an automatic particle counting procedure for determining the number and sizes of particles present in hydraulic-fluid bottle samples of clear, homogeneous, single-phase liquids using an automatic particle counter (APC) that works on the light-extinction principle.

This document is applicable to the monitoring of:

a)ÌýÌýÌýÌýÌýÌý the cleanliness level of fluids circulating in hydraulic systems;

b)ÌýÌýÌýÌýÌýÌý the progress of a flushing operation;

c)ÌýÌýÌýÌýÌýÌý  the cleanliness level of support equipment and test rigs;

d)ÌýÌýÌýÌýÌýÌý the cleanliness level of packaged stock fluid.

NOTEÌýÌýÌýÌýÌýÌý      Measurements can be made with particles suspended in the original liquid or in a sample of the liquid diluted with a compatible liquid when APC coincidence error limits are exceeded.

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