NF ISO 21018-4
NF ISO 21018-4

NF ISO 21018-4

December 2019
Standard Current

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

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Main informations

Collections

National standards and national normative documents

Publication date

December 2019

Number of pages

18 p.

Reference

NF ISO 21018-4

ICS Codes

23.100.60   Filters, seals and contamination of fluids

Print number

1

International kinship

ISO 21018-4:2019
Replaced standards (1)
NF ISO 21018-4
NF ISO 21018-4
December 2016
Standard Cancelled
Hydraulic fluid power - Monitoring the level of particulate contamination in the fluid - Part 4 : use of the light extinction technique

ISO 21018-4:2016 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 off-line 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 ISO 21018-4:2016 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.

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