Question about Danville... Denier 140?

I use Danville 6/0, 3/0 and flat waxed. I know that Denier may be a more universally reliable way in which to measure thread thickness. I noticed recently that the Danville Flat waxed is also called Denier 210. I also notice that there is a Danville Denier 140. I am not familiar with that thread. How does the thickness of the 140 compare with 6/0 and 3/0? Are there other differences, such as thread composition? Twisted/untwisted?

Thanks.

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Peter F
www.fishingwithflies.com
pfrailey@hotmail.com

Here is everything you ever wanted to know about thread, in Tying Tips: [url=http://www.flyanglersonline.com/flytying/tyingtips/part211.html:f2b7b]http://www.flyanglersonline.com/flytying/tyingtips/part211.html[/url:f2b7b]

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LadyFisher, Publisher of
FAOL