Norsok Standard

NORSOK Standard M-506. CO2 corrosion rate calculation model. Oslo Norwegian Technology Standard Institution, 1998. 

The latter steels have been developed during the last few decades. (For compositions, properties and standard numbers, see Table 10.6.) A benefit of the ferritic-austenitic steels is their higher strength compared with the austenitic. Ferritic-austenitic 25-7-4 steel and austenitic 20-18-6 have both shown very good crevice corrosion properties in seawater, but also on these steels attacks may develop when the temperature is above a limit that depends on various conditions. Of these two steel types, the ferritic-austenitic steel may have somewhat lower corrosion resistance in welds than the austenitic 6 Mo steel. With first-class welds, pipes made of the latter material are considered safe to use up to 30-35°C in seawater. However, on flanges that are cast or produced by powder metallurgy, attacks have been found at a temperature as low as 10-15°C. For use in chlorinated seawater with a residual chlorine content of 1.5 ppm, the NORSOK standard [10.10] recommends a maximum temperature of 15°C for components with crevices and 30°C for... 

General recommendations for materials seleetion in die offshore seetor are given in die NORSOK standard [ 10.10]. 

NORSOK, Life Extension for Subsea Systems, NORSOK Standard U-009, Edition 1, March 2011. 

The aforementioned provision on accidental loads is accompanied by an official guideline recommending the use of inter alia several specified NORSOK standards for the purpose of designing the stmcture in such a way that the function requirement is met. 

NORSOK standard for risk analysis (Z-or3, see http //www.standard.no/imaker.exe id=244). 

NORSOK standard 1-002, Rev.2, 2001. Safety and Automation Systems (SAS). NTS Oslo, Norway. 

The NORSOK standards are developed by the Norwegian petroleum industry, and the NORSOK standard Z-013 presents some general requirements regarding the formulation of RAC, see NORSOK (2001). This standard does not provide any guidelines on what actual values to choose for RAC, which is in line with the basic Norwegian PSA requirements, which require that the operators should formulate their own risk acceptance criteria. 

NORSOK 2001 Risk and emergency preparedness analysis NORSOK Standard Z-013 Rev.2, 2001-09-01... 

NORSOK (1998) Z-016 Regularity management reliability technology. NORSOK Standard, Rev. 1. http //www. standard.no/imaker.exe id=563. 

In the wide context of risk analysis there are two traditional models used for risk evaluation and reduction regarding the oil and gas industry in the risk analysis literature. One model can be found at the ISO/IEC Guide 51 1999 and the other one at the NORSOK Standard Z-013. 

The NORSOK Standard Z-013 is a standard edited by theNPD (Norwegian Petroleum Directorate), which is a Norwegian agency in charge to regulate the oil industry activities in the North Sea. This standard has been reedited in 2001 and refers to risk analysis and emergency preparedness. 

The NORSOK Standard Z-013 model for risk estimation, analysis and evaluation describes an approach adjusted to a typical quantitative risk analysis approach for offshore oil and gas structure, defining risk as a... 

Considering the NORSOK Standard Z-013 model for risk estimation, analysis and evaluation this proposed framework can be used as a framework to deal further risk reducing measures after achieving the acceptable risk levels and there still safety improvements that can be implemented. And also held decisions about which risk reduction measures should be implemented, the priority of each action, the risk involved in different parts of the process. 

Standards Norway (2001). Norsok Standard Risk and emergency preparedness analysis, Z-013. Oslo, Norwegian Technology Centre. 

The specification of fail safe for final elements can be designed as fail close, fail open, or stay put/fail lock, that is, the last position before failure depending on application. Usually, ESD valves are the fail close type for isolations (in some cases it may be fail open). In this connection Fig. IX/6.0 1 may be referred to. Also, just as an example. Clause 10.4.2 ofNORSOK standard S-001 2008 maybe referred to (normally used in offshore facilities). Some of the characteristics of ESD valves especially for offshore facilities (NORSOK standard) are ... 

RF finds too many references to NORSOK standards instead of international standards. The International Safety Management (ISM) code for maritime activities should be accepted as a standard for satisfying the requirements on goals and strategies for SHE. 

NORSOK Standard Z-013, Edition 3, 2010. Risk and emergency preparedness assessment. Published by Standards Norway. 

Risk-acceptance criteria are used as a reference in evaluating the results of the risk analysis and in determining the needs of remedial actions. They therefore have to be available prior to the start of the analysis. There are many different types of risk acceptance criteria, see NORSOK standard Z-013 for an overview (Norsk Standard, 1996/97/98/99). Here we will use acceptance criteria related to the risk of fatality or injury to personnel. They must meet the same standards as those of the SHE performance indicators discussed in Section 11.1. In other words, they must be ... 

The NORSOK standard S-002 on Working environment reflects these basic SHE management principles. Chapter 4 of the standard lists the various types of control and verification activities that must be performed by the contractor to cover all essential working environment factors. We here find requirements as to coarse and detailed job-safety analysis and as to quantitative risk analysis. In Chapter 5 we find the working environment requirements as to design. 

The project screens different development concepts. Risks that may make a concept unfeasible or result in high extra costs are focused on in special studies. An independent consultant carries out coarse Risk and emergency-preparedness analysis (REPA) for the two development alternatives that are considered (NORSOK Standard Z-013, see Norsk Standard, 1998). They are a standard production ship and a standard semi-submersible PDQ platform. The aim is to get a total overview of the risks involved for concept selection and to check compliance with the acceptance criteria. It is important to remember that the REPA and the acceptance criteria evaluate the integrity of passive and embedded barriers in particular. These are to a large extent determined in the early project phase. 

Contractors are obliged to set up and manage SHE programmes for construction to ensure that the regulatory and contractual requirements are comphed with. According to the NORSOK standard, the following should be documented in this programme ... 

Norsk Standard, 1996/97/98/99. Technical Safety (Norsok Standard S-001). Working Environment (Norsok Standard S-002). Environmental Care (Norsok Standard S-003). Machinery—Working Environment Assessment and Documentation (Norsok Standard S-005). Health, Safety and Environment During Construction (Norsok Standard S-CR-002), Risk and Emergency Preparedness Analysis (Norsok Standard Z-013). Norsk Standard, Oslo. 

CO2 Corrosion Rate Calculation Model, Norsok Standard, M-506, Rev2, June 2005. 

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