API 650 رو هم براتون میذارم.
API Standard 650 Addendum 4 Welded Steel Tanks For Oil Storage 2005
http://ifile.it/nkhcal6/api_650_a4.pdf
API Std 650 Welded Steel Tanks for Oil Storage 2007, 11th Edition
http://ifile.it/zmoj0hd
این هم استانداردAWWA
AWWA Standard for Welded Carbon Steel...