Defs are in ASTM 53 which is most likely referenced.  But I agree we should 
always speak in schedules or wall thickness. 

Don't beat up the specifiers too nuch when NFPA 11 2010 uses std. weight.

Chris
-----Original Message-----
From: "Bob Knight" <[email protected]>
Sender: [email protected]
Date: Thu, 16 Dec 2010 10:36:16 
To: <[email protected]>
Reply-To: [email protected]
Subject: RE: Std. Weight Pipe

Right on Thom!  I have always interpreted it to mean Sch 40 & Sch 10.  I can't 
recall ever being challenged using this as my basis for standard weight pipe.

BK

-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Thom
Sent: Thursday, December 16, 2010 10:29 AM
To: [email protected]
Subject: RE: Std. Weight Pipe

Just from the answers you've received I say they make my point that Standard 
weight is ill defined, and in the mind of the beholder. Look at all of the 
differences in the answers! Who's right? All of them! And none of them, or more 
appropriately more than all of them. Any reasonable interpretation.
(Specific to military, they define what standard weight pipe is in their 
general material standards, so if this is gov. spec. they should list 
additional standards as ref.)

T.

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Ron Greenman
Sent: Thursday, December 16, 2010 9:52 AM
To: [email protected]
Subject: Re: Std. Weight Pipe

Standard weight is typically schd 40 up to 6". Standard weight 6" + is steed 
30. Anything less is lightweight (schd 5, 7, 10 & lightweight thread-able (schd 
30 under 6")  and anything more is heavy weight (schd 80 & 120).

On Thu, Dec 16, 2010 at 8:45 AM, Brian Harris <[email protected]> 
wrote:
> When reading a spec and it list 1-1/2" and smaller to be Standard 
> Weight Pipe, 2" and above to be standard weight pipe, how do most of 
> you
interpret
> "standard weight" pipe?  1-1/2" and smaller = sch.40 & 2" and above = 
> sch.10? What's the industry standard when it comes to standard weight?
>
>
>
> Brian Harris
>
> First Defense Fire Protection
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--
Ron Greenman
Instructor
Fire Protection Engineering Technology
Bates Technical College
1101 So. Yakima Ave.
Tacoma, WA 98405

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253.680.7346
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Member:
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essayist, philosopher, and statesman 
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