On Wed, 14 Feb 2018 17:40:05 +1100, Jon Anderson
wrote:

On 14/02/2018 2:50 PM, Ed Huntress wrote:

But what you're really looking for is an indicator that a material is
or is not cutting oil. There's no assurance of this, but most
dedicated cutting oils have contained sulfur for decades. The ones
that don't are more recent formulations.

I wonder what the chances are that there's a mix of cutting and
lubricating oil. And, even if sulfer isn't present, there might be
other components not good for the burner, or that might emit toxic
fumes. (more toxic than from burning straight lubricating oil...)


Perhaps fine metal particles that would damage the pump and/or
nozzles.


Jon

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