Re: Coil Form needed 2

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Jim Lux <jimlux-at-earthlink-dot-net> 

At 04:16 PM 5/19/2004 -0600, you wrote:
>Original poster: "Arpit Thomas" <arpit-at-inzo-dot-org>
>3 types of pvc pipe i've seen . PRessure pipe- comes in schedule 40, 80 or 
>120 in the USA, in verious 'classes' in australia, where class number x 
>100 = kpa pressure rating.
>
>THen youve got DWV - drain waste vent pipe- thinner walls, white pvc, no 
>pressure rating.
>
>LAstly you have very thin green dwv pipe. I believe it's called 'cellular 
>core.'
>
>THis is what i've seen.
>Research says that green is typically used for sewers
>
>http://www.ppfahome-dot-org/pvc/faqpvc.html
>may interest some of you.

Here in the US, DWV is usually Black ABS (with a foam core)

The green stuff (other colors too) is also called SDR (Sewer, Drain, and 
something)