These parameters are defined because catastrophic failures in hydraulic systems that occur because of large particles in the oil (14 micrometers or more).
#Iso 4406 table iso#
ISO 4406 and particle countingįirst, this standard works with three particle size references: 4 micrometers, 6 micrometers and 14 micrometers. Table 1: List of some components and the respective level of ISO contamination required for the oils used in this equipment. Subjecting these components to a fluid with higher levels of contamination may result in a shorter life span for them. Many manufacturers of hydraulic equipment and bearings specify an optimal level of cleanliness required for their components. ISO 4406 is an internationally known standard that not only expresses the level of contamination of hydraulic oil by particles, but is also used to specify the required level of cleanliness for hydraulic components and systems. Read our post and learn about the ISO 4406 standard, how it works and how it allows us to identify the levels of contamination in a fluid. We will discuss below the importance of ISO 4406, the most used today.
#Iso 4406 table code#
The ISO 4406 standard consists of a representation guide, in order to simplify the particle count report, converting the quantity found per milliliter of the sample analyzed into a code that measures this value. In this sense, standards such as ISO 4406: 1999 are important tools for the monitoring and accurate calculation of the count of contaminating particles present in a given fluid. Thus, to ensure the good performance of machines and equipment, it is essential that regular monitoring of oil and fluid cleaning conditions is carried out. Video – Using the ISO Standard to understand oil conditionsĪs you can see in the video, due to the size of the gaps in systems (hydraulic, lubricants and combustion) oil contaminating agents such as moisture and microparticles can start premature wear and loss of efficiency, even in small quantities.
![iso 4406 table iso 4406 table](https://www.oas-online.co.uk/wp-content/uploads/2019/07/NAS_1638_Table_med-325x77.png)
![iso 4406 table iso 4406 table](https://www.oas-online.co.uk/wp-content/uploads/2019/07/NAS_1638_Table_med-375x88.png)
![iso 4406 table iso 4406 table](https://www.sealingandcontaminationtips.com/wp-content/uploads/2016/08/Schroeder-FC-chart3.jpg)
This contamination, evolving gradually, compromises the useful life of the equipment, requires more frequent changes of parts and fluids, generating higher maintenance costs and even catastrophic failures. As we saw earlier, contamination of oils and fluids is a serious problem for the most diverse productive sectors.