Accredited calibration across seven disciplines
Field Calibrations maintains a broad ISO/IEC 17025:2017 scope spanning dimensional, mechanical, thermal/environmental, DC/low electrical, RF/microwave, chemical, and pressure/torque measurement — all traceable to NIST and delivered with stated measurement uncertainty at a 95% confidence level (k=2).
Measurement scope at a glance
| § | Discipline | Representative Range | Best Uncertainty (k=2) | Primary Standard | Detail |
|---|---|---|---|---|---|
| 01 | Dimensional | 0.0625 in – 60 in | (70 + 7.5L) µin | Gage blocks + micrometer standards | OPEN → |
| 02 | Mechanical | 6 – 99,999 rpm | 0.011 – 0.59 rpm | HP 3325B | OPEN → |
| 03 | Thermal / Environmental | −250 °C – 1820 °C | 0.08 – 0.73 °C | Fluke 7526A (direct) | OPEN → |
| 04 | DC / Low Frequency (Electrical) | 0 mV – 1000 V | scales with range | Fluke 5720A / HP 3458A | OPEN → |
| 05 | RF / Microwave & Time/Frequency | 0.0001 – 26.5 GHz, −20 to +20 dBm | 0.12 – 0.35 dBm | HP 437B w/ HP 8482A (≤18 GHz) / 8485A (≤26.5 GHz) | OPEN → |
| 06 | Chemical | 10 pH | 0.024 pH | Buffer solutions, direct method | OPEN → |
| 07 | Pressure & Vacuum | 0 – 10 inH₂O | 0.031 inH₂O | Fluke 700P01 / 719 | OPEN → |
Representative values shown. Complete CMC tables stated on each ISO/IEC 17025:2017 certificate. See the full HTML accreditation scope for every parameter.
Dimensional
Length and geometry verification — micrometers and calipers from fractions of an inch to 60 inches — traceable to NIST through gage-block standards.
Mechanical
Rotational speed, mass and balances, force gauges and load cells to 225,000 lbf, and hand torque tools to 3,120 lbf·in — against deadweight and reference standards.
Thermal / Environmental
Thermocouple and RTD simulation, generated and measured temperature −197 °C to 660 °C, infrared, and relative humidity — against Fluke 7526A, Hart 1502A, Thunder Scientific, and Vaisala standards.
DC / Low Frequency (Electrical)
DC and low-frequency voltage, current, resistance, power, capacitance, inductance, plus oscilloscope parameters — against Fluke 5720A/5520A, HP 3458A, and Vitrek 4620B reference standards.
RF / Microwave & Time/Frequency
RF power measurement to 26.5 GHz, frequency generation and measurement to 26.5 GHz, and timer/stopwatch calibration — against HP 437B power sensors and Fluke 910R / HP 3325 frequency references.
Chemical
pH generation and verification against certified buffer solutions, with CMCs as low as 0.024 pH — supporting environmental, water-quality, and process-chemistry programs.
Pressure & Vacuum
Pressure and vacuum from −12 psi to 10,000 psi, calibrated against Fluke 700-series and 719/717 reference standards with CMCs as low as 0.018 psi.