CleanControlling carries out analyses of oil cleanliness according to ISO 4406 with the material microscopic method according to ISO 4407 ("Hydraulic fluid power - Fluid contamination - Determination of particulate contamination by the counting method using an optical microscope"). For the microscopic analysis, the particle contamination of the fluid to be analysed is diluted with a suitable solvent and separated on the analysis filter (cellulose nitrate 0.8 µm) by analysis filtration. The microscopic analysis is carried out using an automatic material microscope from 5 µm (alternatively also from 2 µm) particle size.. The result is reported according to ISO 4406 code by count per size class per 100 ml of liquid.
Typical industries | Mechanical engineering, Commercial vehicle/agricultural/construction machinery industry, Manufacturers of hydraulic components, Automotive and automotive supply industry |
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Type of contamination | Particulate contamination or solids in liquid petroleum products |
Result | Number of particles according to ISO 4406 code for the size ranges > 5 µm / > 15 µm in relation to the amount of liquid in ml |
Test object | oil or aqueous solution, sample quantity 100 ml ± 5 ml, sampling by client with clean sample bottle |
These tests are part of our accreditation, detailed information on the scope of accreditation can be found here.
Detailed information on the test procedures and test standards can be found in our Infothek.
If you have any further questions, the contact persons from our sales team will be happy to help you.
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