Høringsforslag - detaljer

Nummer:prNORSOK M-501
Komité:SN/K 114/EG M
Standard Norges høringsstart:28. sep 2021
Standard Norges høringsfrist:1. des 2021
Contact email:by231(at)standard.no
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Høringsforslagets omfang:

Public enquiry prNORSOK M-501:2021.

All comment shal be submitted using this enquiry system, and shall be written in the English language.


prNORSOK M-501:2021 will supersede NORSOK M-501 ed. 6, February 2012 when published in 2022.

prNORSOK M-501 specifies the requirements for the selection of coating materials, surface preparation, application procedures and inspection for protective coatings to be applied during the construction and installation of offshore and coastal facilities and gives guidelines with respect to later maintenance work.
The objective of this document is to obtain coating systems that: 
— can meet the high durability range as defined in NS-EN ISO 12944-1; 
— can provide an optimal protection of the coated object with a minimum need for maintenance;
— are maintenance friendly;
— are application friendly;
— ensure health, safety and environmental impacts are evaluated and documented. 
This document is not applicable to pipelines and pipeline risers.  
However, it must be highlighted that a coating friendly design is a prerequisite for achieving a durable protection with limited maintenance and repairs. As a minimum the design of structures, equipment and items that shall be coated according to this document shall comply with the recommendation of NS-EN ISO 12944-3. To meet this requirement is outside the scope of a coating applicator since due considerations need to be taken at a much earlier design phase.  This is a concern prior to any coating application. However, this is particularly emphasised for items to be coated with system 2A or 2B due to the limitations related to metallic spray gun angles and distance restrictions. 

The main changes included in this edition are:

— The corrosivity categories accounted for are described and also include buried conditions;

— the coating systems are divided into numbered sub-systems to distinguish substrate materials and varying operating conditions and described in separate coating system data sheets;

— new coating systems are introduced to cover:

— cryogenic service;

— high temperature service;

— powder coatings;

— passive fire protection in splash zone.

— quality control measures have been added for blasting abrasives;

— system pre-qualifications are introduced for additional coating systems;

— the requirements related to the coating procedure tests are outlined in more detail and an informative annex is included to visualise a typical test panel;

— the Health, Safety and Environment section (HSE)  is rewritten;

— the passive fire protection section (PFP) has been extensively updated;

— a new section is included to cover quality management and performance assurance;

— a new section is included to cover coating selection tables;

— normative annexes are included to describe additional requirements related to the PFP pre-qualifications;

— a normative annex is included to describe the requirements related to the adhesion/cohesion testing;

— an informative annex is included to describe the qualification requirements for coating operators;

— a new section is included to cover repair of coating;

— an informative annex is included to describe overlapping zones between coating systems;

— an informative annex is included to describe maintenance coating.

The bibliography lists standards, norms, laws, regulations and other literature that may be relevant to the use of this document.

Normative text contains the requirements of the standard. Informative text is only guidance to the reader. All text in foreword and introduction is informative text. Note to entries in Clause 3, Tables and Annexes to this document may be either normative or informative.

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