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Re: Mineral Spirits

William Bilkovich wrote:
> Does anyone know the difference between mineral spirits 66 and mineral spirits 66/3?
> I'm wondering whether one has lower environmental impact than the other.
> Bill Bilkovich
> Environmental Quality Consultants
> 850-894-2780
> bilko@electro-net.com

I think the designations are a left over reference to the old Rule 66 of
the Los Angeles basin that regulated the composition (allowed relative
quantity) of solvents in paints based on the photochemical reactivity of
the solvent. Some states still use a version of this rule.

Don Martz
Senior Scientist
Martz Science Consultants