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ISO 4406:2021

Hydraulic fluid power — Fluids — Method for coding the level of contamination by solid particles

General information

Valid from 07.01.2021
ICS Groups
23.100.60 Filters, seals and contamination of fluids 75.120 Hydraulic fluids
Directives or regulations
None

Standard history

Status
Date
Type
Name
07.01.2021
Main
ISO 4406:2021
08.08.2017
Main
ISO 4406:2017
This document specifies the code to be used in defining the quantity of solid particles in the fluid used in a given hydraulic fluid power system.

Required fields are indicated with *

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PDF
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Paper
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Standard monitoring
English (PDF 888 KB)

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Standards designation

EVS Estonian standard
EN European standard (published by an CEN or CENELEC)
EN ISO International standard adopted as an European standard
ISO International Organization for Standardization’s standard
IEC International Electrotechnical Commission’s standard
HD CENELEC’s harmonisation document
   
EVS-EN European standard implemented in Estonia
EVS-EN ISO International standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IEC International standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IEC International electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
   
A, AMD amedment
+A a full standard plus the amendment
/A only amendment
COR, AC corrigendum
+COR a full standard plus the corrigendum
NA national annex
+NA a full standard plus the national annex
/NA only national annex
TS technical specification
TR technical report
CWA agreement, developed by a CEN or CENELEC
prEVS-EN (etc) draft standard
   
et the standard is in Estonian only
en the standard is in English only
et-en the standard is in Parallel text Estonian-English