This specification covers pyrometric requirements for equipment used for the thermal processing of metallic materials. Specifically, it covers temperature sensors, instrumentation, thermal processing equipment, correction factors and instrument offsets, system accuracy tests, and temperature uniformity surveys. These are necessary to ensure that parts or raw materials are heat treated in accordance with the applicable specification(s). AMS2750G results from a Two-Year Review and update of this specification. There were multiple requirements in AMS2750F that became effective 2 years after its release on June 29, 2020, making other requirements obsolete from that point forward. AMS2750G has fully incorporated these 2 year requirements and removed the obsolescent requirements thus preventing their unintended use. The only exception to this, due to equipment availability, is that 3.2.3.2.1 regarding digital recording instruments was added to give users one additional year to comply with the minimum readability. Additionally, this revision has made numerous clarifications to aid the user.