ISO 4021:1992
International Standard
Current Edition
· Approved on 21 October 1992
Hydraulic fluid power — Particulate contamination analysis — Extraction of fluid samples from lines of an operating system
ISO 4021:1992 Files
English 6 Pages
Current Edition
20.23 OMR
ISO 4021:1992 Scope
The preferred method is to extract fluid samples from a main flowline in such a manner that the particulate contaminant in the sample is representative of the fluid flowing at the point of sampling. An alternative method is to extract a sample from the reservoir, but this method should only be used if a suitable sampler is not fitted.
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