Definition(s)


H2S Trim

All components, except external valve body, meeting the H2S service requirements of ISO 15156-2 and ISO 15156-3. NOTE For the purposes of this provision, NACE MR0175 is equivalent to ISO 15156–2 and ISO 15156–3.

Source: API SPEC 7-1, Specification for Rotary Drill Stem Elements, First Edition, March 2006 (Addendum April 2011). Global Standards

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