You need to purchase NACE MR0175.  This is available directly from NACE (http://www.nace.org) or from IHS (http://global.ihs.com/).

Thanks for your post, but can you elaborate at all? Is 316 SS material even available with the full cert or is it not that simple? Do finished parts have to be tested in order to be certified?
Thanks-

The only thing that a manufacturer can do is offer a certificate of compliance and even that will be a thorny issue for those materials that have specific environmental limitations because how can the certificating entity be sure that the environmental restrictions are being followed in the specific service application.  Since 316 only requires a specific heat treatment condition; freedom from cold work that enhances mechanical properties; and a maximum hardness of 22 HRC (for specific environmental limitations) it should be easy to request an ISO 10474 3.1.B or EN 10204 3.1 certificate; however, what (and when) is actually tested depends upon the product specification and not MR0175/ISO 15156.  What it won't be easy to do is certify that the environmental limitations will be complied with!

Simple isn't it?

Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdo/