W08ROLLED STEEL BARS FOR ANCHOR CHAIN CABLES AND ACCESSORIES
1.In accordance with the IACS UR W22,the requirement “After satisfactory tests, steel bars are sent to make finished mooring chain for type tests. The materials suppliers may be approved after all satisfactory tests.” is added.
2.In accordance with the Rules of material and wedding 2015, the grades of the rolled bars for anchor chain cable and accessories are modified.
3.In accordance with the IACS UR W22, the range of the steel for chain cables within different grades.
4.In accordance with the IACS UR W22 and < The instruction for publish of the guideline of the marine productions>, the requirement of the approval documents submitted by the manufacture is modified and added.
5.In accordance with the IACS UR W22, the welding property test is deleted.
6.In accordance with the IACS UR W22, the non-metallic inclusions test is added.
7.In accordance with the IACS UR W22, the non-detective test during the type test is modified.
8.In accordance with the IACS UR W22, the work approval for the rolled steel is modified.
9.The definition of the “Marine anchor chain cable , Mooring chains, anchor chain cables” is added.
In accordance with < The instruction for the publish of the guideline of the marine productions>, the original guideline is modified.

W10COPPER ALLOY PROPELLERS
Application,Normative references,Terminology and definitions,Plans and documents,Materials and components,Design and technical requirements, The part of visual&dimensional and geometrical tolerances examination,Static balancing,Dynamic balancing of Type test and Unit/batch inspection have been revised in this edition.

W11MOORING CHAINS AND ACCESSORIES FOR POSITIONING OF OFFSHORE INSTALLATIONS
1.In accordance Rules for material and welding 2015 the mooring chain grades are modified to the R3, R3S, R4, R4S and R5.
2.In accordance with the IACS UR W22, the documents and drawing submitted for approval, the R4S and R5 is added.
3.In accordance with the IACS UR W22, the documents requirement of the heat treatment calibration and detection are added.
4.In accordance with the IACS UR W22, the documents requirements of the surface quality requirement and  removing and replacing defective links are added.
5.In accordance with the IACS UR W22, the range of the steel for mooring chain cables within different grades.
6.In accordance with the IACS UR W22 and CTOD test is modified.
7.In accordance with < The instruction for the publish of the guideline of the marine productions>, the original guideline is modified.

Effective date: October 20,2016