Analyzing to ISO classification table (above), this oil sample has a.
ISO 4406 TABLE FULL
The full text of the standard can be purchased from the ISO Website. ISO4406:1999 standard determines the quantity of particles in a cumulative way. ISO 11500: This method, which is the most widely deployed. The first step in measuring oil cleanliness is counting the particulate matter using one of several particle counting methods.
ISO 4406 TABLE CODE
This code quantifies particulate contamination levels per milliliter of oil at 4, 6and 14 µm. It has to be purchased from the International Organization for Standardization (ISO) website. Oil cleanliness is measured against ISO Cleanliness Code 4406. Range Numberĭetailed Information on ISO4406:2017 is not available free-of-charge. A three number code defines the amount of contamination at 4. It translates what each ISO ‘range number’ means in terms of number of particles found at each micron test. Table 1 in ISO 4406 provides scale values as a function of particle concentration (particles/mL). NAS 1638 Table SAE standard AS 4059 also applies and lists fluid particulate contamination cumulatively for 5 ranges for contamination classes from 000 to 12. The table below is an extension of the example given above.
The cleanliness code is made up of three numbers that identify the number of particles that are present in one millilitre of fuel: ISO4406:2017 is the internationally recognised method of quoting the solid particulate count in a fuel sample.