Re: Purchase Specification

From: <Christopher>
Date: Mon Jun 25 2001 - 11:39:00 EDT

>Conflict is bound to arise between the documents mentioned. If this happens,
>what is the order of precedence ?

There is no order of preference--what needs to happen is that conflicts get resolved and the documents changed accordingly. The customer spec is very important since it defines the conditions for payment. Always talk conflicts over with the customer because you can be considered unresponsive (and not get paid) if you don't follow the spec.

>2. What is the difference between the MTR (material test report or mill
>certicate)

The mill test report is actual measured mechanical and chemical properties. are a warranty from the supplier that the material will meet a certain spec.

>3. Can the ASTM material be substituted for material specified under the
>ASME?

Only if the material meets the ASME spec in every single respect. This will require mill test reports, not certificates of compliance and may require some processing info. Be careful here because some grades of material listed in an ASTM spec are not permitted by the ASME specification having the same number. Such material grades cannot be used for ASME Code construction

Christopher Wright P.E. |"They couldn't hit an elephant from <a href="/group/PipingDesign/post?postID=t3nNR0MUNE74jsvLDmYAxlSl14zQHpIw2dVYW8_BbL9_srPBVm8kEMy59H19MASomzvv-HvwxToJr_8">chrisw@skypoint.com</a> | this distance" (last words of Gen.

___________________________| John Sedgwick, Spotsylvania 1864)

<a href="http://www.skypoint.com/~chrisw">http://www.skypoint.com/~chrisw</a> Received on Mon Jun 25 11:39:00 2001