| — | Ch.2 Sec.1: Updating
of steel grades in accordance with Ship Rules for steels of normal
weldability and in accordance with international standards for steels
of increased weldability. |
| — | Ch.2 Sec.2: Totally
re-written. More references to international standards. Division
of pipes into different categories. Detailed Charpy V-notch requirements
to pipes for low-temperature services. |
| — | Ch.2 Sec.3: Revised
in accordance with Ship Rules and international standards. Requirements
to 'Ferritic steel castings for low temperature service' and 'Stainless
steel castings' have been included. |
| — | Ch.2 Sec.4: Revised
in accordance with Ship Rules and international standards. Requirements
to 'Ferritic steel forgings for low temperature service' and 'Stainless
steel forgings' have been included. |
| — | Ch.2 Sec.5 and Sec.6: Updated in accordance with
international standards. |
| — | Ch.3: No changes to
main certification requirements compared to previous edition. However,
requirements to Approval of Manufacturer (AoM) have been limited
to works delivering steel materials with NV or Works certificates. |