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ISO 21018-4:2019

Current Revision

Hydraulic fluid power - Monitoring the level of particulate contamination in the fluid - Part 4: Use of the light extinction technique

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This document specifies a method for the determination of the particulate contamination level using the light extinction technique (also known as light blockage or light obscuration) either online or offline in containers. It also defines procedures for calibrating the instruments and verifying their correct operation both in the laboratory and in service.

In general, the techniques described in this document are suitable for monitoring:

— the general cleanliness level in hydraulic systems,

— the progress in flushing operations, and

— support equipment and test rigs.

The use of this method is applicable to single-phase liquid systems only.


SDO ISO: International Organization for Standardization
Document Number ISO 21018
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 131/SC 6
Publish Date Document Id Type View
Not Available ISO 21018-4:2019 Revision