Reference number
ISO 21018-4:2019
© ISO 2024
International Standard
ISO 21018-4:2019
Hydraulic fluid power — Monitoring the level of particulate contamination in the fluid — Part 4: Use of the light extinction technique
Edition 2
2019-08
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Published (Edition 2, 2019)

ISO 21018-4:2019

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Format
CHF 63
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Abstract

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.

General information

  • Status
     : Published
    Publication date
     : 2019-08
    Stage
    : International Standard under systematic review [90.20]
  • Edition
     : 2
    Number of pages
     : 10
  • Technical Committee :
    ISO/TC 131/SC 6
    ICS :
    23.100.60 
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Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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