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11112 Difficulties inthe Use of NACE MR0175/ISO 15156

This paper will discuss some of the reasons why some Owner/Operators are choosing to invoke NACE MR0175-20021 instead of NACE MR0175/ISO 15156. Examples of exceptions taken will be examined. And cost issues involved in meeting MR0175/ISO 15156 will be presented.

Product Number: 51300-11112-SG
ISBN: 11112 2011 CP
Author: Jeff Vatne and Regina Verdolin
Publication Date: 2011
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$20.00
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From 1975 to 2003, guidelines and latest industry practices to avoid sulfide stress cracking (SSC) in upstream H2S-containing services have been published in NACE Standard MR0175. Over those years, many changes have been made to the standard, culminating in its evolution to NACE MR0175/ISO 15156 seven years ago. However, there have been difficulties for Owner/Operators in the application of this latest standard, and for vendors in meeting its requirements.

As a result, there are those who are choosing to invoke NACE MR0175-20021, instead. This paper will discuss some of the reasons why this is so, including the effects of changes in the sour service definitions. Examples of exceptions taken will be examined. And cost issues involved in meeting MR0175/ISO 15156 will be presented.

Keywords: sulfide stress corrosion cracking, sour service, NACE MR0175

From 1975 to 2003, guidelines and latest industry practices to avoid sulfide stress cracking (SSC) in upstream H2S-containing services have been published in NACE Standard MR0175. Over those years, many changes have been made to the standard, culminating in its evolution to NACE MR0175/ISO 15156 seven years ago. However, there have been difficulties for Owner/Operators in the application of this latest standard, and for vendors in meeting its requirements.

As a result, there are those who are choosing to invoke NACE MR0175-20021, instead. This paper will discuss some of the reasons why this is so, including the effects of changes in the sour service definitions. Examples of exceptions taken will be examined. And cost issues involved in meeting MR0175/ISO 15156 will be presented.

Keywords: sulfide stress corrosion cracking, sour service, NACE MR0175

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