FAQ's

What does the MR0175 define as a shear blade?

Questions about NACE MR0175/ISO 15156-2 Annex A.2.3.2.1

What are Shear Blades?

When it comes to NACE MR0175, the term “”Shear Blades”” is not defined.

Does User Responsibility Make Shear Blades Compliant with MR0175?

Blowout preventer shear blades have permitted exclusions in Part 2 Table 1 and Part 3 Table 1. However, the cautionary note in Part 2 Section A.2.3.2.1 is there to alert the end user that the shear blades can be susceptible to SSC. Therefore, it’s important for equipment users to take responsibility for the suitability of shear blades to ensure compliance with MR0175.

Reference: ISO 15156 Maintenance Panel Inquiry #2015-05rev1 Q1 and Q2.

OGC Energy offers interpretation and implementation assistance for NACE MR0175.

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