Smoke number

[cranetruck]

Does anybody have a chart or picture that represents examples of the different smoke numbers? For example, what does "smoke number 1" look like in real life?
(It's an air pollution thing)

TIA

 

[ENCS_DEI]

Try this link for Ringelmann smoke chart. http://www.cdc.gov/niosh/mining/pubs/pdfs/ic8333.pdf
Russ

 

[cranetruck]

Thanks, it's a starting point. Found a chart...
I was concerned that the smoke from my coolant heater is a sign of a problem, but an old test report states that the exhaust may have a "smoke number of 1", while the fuel burning personnel heater has no visible exhaust smoke.

 

[WillWagner]

I think I might have a couple in my toolbox. PM me if you need one.

 

[cranetruck]

Thanks Will, I may take you up on the offer.
So, if there is no visible smoke, does it still get a "1"?

I'll have to run the coolant heater longer to get a feel for the exhaust, it may smoke a lot in the beginning because of the cooling effect of the coolant in the heat exchanger, which holds about a 1/4 of a gallon...

 

[WillWagner]

Dunno? We haven't used a ringelmann in forever. I do know that on a moke meter, even if you can't see the smoke, it still registers. The lowest I have seen was a 3% opacity and that was no visible smoke.