Certificate of Compliance or MTR

[VoDich]

Do you guys typically request certificates of compliance (COC) or mill test reports (MTR) from the vendor to confirm that the pipes they want to use meet ASTM standards? Per specifications, the pipes need to meet ASTM A53/A53M for steel, and ASTM B88 for copper. These pipes will be used for domestic water, natural gas, chilled water, and/or steam (100 psi) in the building.

Does it matter whether the vendor is getting the pipes manufactured in the US or overseas? And how to ensure that the COC or MTR is valid? Say it's coming from China.

Thanks.

 

[SJones]

https://www.iogp.org/bookstore/prod...rtification-standards-en-10204-and-iso-10474/

Steve Jones
Corrosion Management Consultant

http://www.linkedin.com/in/drstevejones

All answers are personal opinions only and are in no way connected with any employer.