Precision Measurement cannot happen without proper temperature control. We understand the impact temperature can have when measuring in micro inches; and therefore have hired the Canadian National Research Council to design and help build our Metrology Lab. We currently have temperature accuracy of +/- 0.25° C.
This is absolutely necessary as detailed calculation are conducted to determine measurement uncertainties for all our measurement process. If the Lab you are using cannot give you measurement uncertainty data; you may want to rethink where you are sending your tools/gauges.
Northern Gauge is the only Metrology Lab in Canada to offer API 5B (EUE, NUE, CASING, BUTTRESS CASING, LP) and API 7-2 (REG ROTARY, IF, XH, PAC, FH, H90) Working to Master NIST/NIM Master Standoff Measurements. This Calibration is in full compliance to API Spec.