Hi Rafe, this was an excellent explanatory video. There are two areas that perhaps could have been explained in more detail. The first, is that the number of particles are as found per millilitre (ml) of fluid. The other comment was that it is possible to have a repeating number such as 20/20/16, they don't have to reduce each category - however it is uncommon. When you do see a digital particle counter displaying a repeating number such as 20/20/20, it is likely reading in error, as not all particles in the 4, 6, 14 μm range will fall into that same band.
Thanks James! You make excellent point that yes, number of particles could be decreasing but all within a single ISO code. Next time I do a particle count I'll have to point that out. And the 1mL thing is a good point too - can't remember if I cover that in the particle count video or not.
Hi Nice Video...I am watching from India. And I am working in Sales and Marketing to promote our lube oil testing services. This video is very useful for me. Thanks...
Great video !! Clear explanation ! I think one point that was missed in video. It was a sample size for classification. I read somewhere that this table gives a number for 100 ml sample. However in laboratory we do test on 1 ml sample and then extrapolate it and compare with table. I request you to share your views on this.
Good Show, Sir :) Yes, for hydraulic oils. In Western Australia - Similar reports for Auto Trans oils. But they specify number per category? For Engine Oils - There's PQI. (Yes, also the other known things) Seems PQI picks up, magnetically, particles > in size, than what ICP can detect?
Yes! In fact we're planning on doing a future video on PQI, and how to interpret this test alongside standard ICP Iron. In short - PQ measures the total amount of ferromagnetic material in the sample, but can't distinguish size - if you placed an Iron bar in an oil sample, the PQI would be very high even though there is only one "particle".
Hi Rafe, this was an excellent explanatory video. There are two areas that perhaps could have been explained in more detail. The first, is that the number of particles are as found per millilitre (ml) of fluid. The other comment was that it is possible to have a repeating number such as 20/20/16, they don't have to reduce each category - however it is uncommon. When you do see a digital particle counter displaying a repeating number such as 20/20/20, it is likely reading in error, as not all particles in the 4, 6, 14 μm range will fall into that same band.
Thanks James! You make excellent point that yes, number of particles could be decreasing but all within a single ISO code. Next time I do a particle count I'll have to point that out. And the 1mL thing is a good point too - can't remember if I cover that in the particle count video or not.
How do you do the particle count ?
Hi Nice Video...I am watching from India. And I am working in Sales and Marketing to promote our lube oil testing services. This video is very useful for me. Thanks...
Great video !! Clear explanation ! I think one point that was missed in video. It was a sample size for classification.
I read somewhere that this table gives a number for 100 ml sample. However in laboratory we do test on 1 ml sample and then extrapolate it and compare with table.
I request you to share your views on this.
Good Show, Sir :) Yes, for hydraulic oils.
In Western Australia - Similar reports for Auto Trans oils. But they specify number per category?
For Engine Oils - There's PQI. (Yes, also the other known things)
Seems PQI picks up, magnetically, particles > in size, than what ICP can detect?
Yes! In fact we're planning on doing a future video on PQI, and how to interpret this test alongside standard ICP Iron. In short - PQ measures the total amount of ferromagnetic material in the sample, but can't distinguish size - if you placed an Iron bar in an oil sample, the PQI would be very high even though there is only one "particle".
Very impressive and knowledgeable
Thanks!
Thank You!
Hi,
Where can I download the chart you use?
The charts available are not set out the same.
Thanks
Mike.
Email me! lubrication.explained@gmail.com
How to convert to Nas class
Ahh, that's a great suggestion - we'll put a short video explainer together for the conversion.