NACE published the first standard in the year 1975. It only applies to pipelines, equipment, and processing facilities where H2S is present.
Why NACE is required?
NACE MR0175 is titled: Petroleum and Natural Gas Industries — Materials for use in H2S-containing environments in oil and gas production. It was issued as a recommendation of threshold limits of H2S above which precautions against environmental cracking are considered necessary.
What is NACE approved?
A NACE MR0175 compliant material (sometimes inaccurately referred to as NACE material or NACE piping) is a material that meets all the requirements of NACE MR0175 and can be used in H2S environments within the limits set by the standard.
