The International Organization for Standardization (ISO). Second edition. This second edition, together with ISO 9328-6, cancels and replaces ISO 9328-4:1991, which has been technically revised and separated into two parts. This standard has been approved as a Gulf Standard without any technical modifications by GCC Standardization Organization (GSO). Board of Directors held on 5/6/2007. 27p. This part of ISO 9328 specifies the requirements for flat products for pressure equipment made of weldable fine grain steels as specified in Tables A.1 and B
.1. The requirements and definitions of ISO 9328-1 also apply to this part of ISO 9328