SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 & ANSI/NCSL Z540-1-1994
Some equipment we can calibrate includes hardness testers, tension and compression machines, pressure, vacuum, torque wrenches, torque testers, torque transducers, load cells, force measuring equipment, Concrete Testing Machines, and deadweight pressure testers.
One of our newest pieces of equipment we're proud to feature is the Morehouse Universal Calibrating Machine (UCM), used to accurately calibrate both tension and compression instruments in accordance with ASTM E74.
In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to our laboratory to perform the following Mechanical calibrations including hardness testing, force and torque calibration, and more.
One of our featured pieces of calibration equipment for torque calibration is the SURETEST Model 5000-3
Read about our dedicated Pressure Calibration Room
Full details are listed below. You can also search all of our accredited calibrations or learn more about our in-lab calibration service.
A2LA Accredited Calibration Lab – ISO/IEC 17025:2017 & ANSI/NCSL Z540-1-1994
Certificate No. 1848.01 · Valid to August 31, 2027
Certificate No. 1848.01 · Valid to August 31, 2027
Mechanical Calibration Scope Includes:
| Parameter/Equipment | Range | CMC2, 4, 6 (±) | Comments |
|---|---|---|---|
| Indirect Verification of Brinell Hardness Testers3 | HBW 10/500 (15.9 to 109) | 1.1 HBW | Method: ACP-020D; ASTM E10 |
| HBW 10/3000 (95.5 to 650) | 2.0 HBW | ||
| Brinell Force (Direct Verification)3 | (0 to 3000) kg load | 0.16 kg | Method: ACP-020F; load cell |
| Brinell Scope (Direct Verification) | (0 to 7) mm | 0.029 mm | Stage micrometer; ASTM E10 |
| Indirect Verification of Microindentation Hardness Testers3 Vickers ≥ 1 kgf |
(200 to 850) HV | 2 HV | Method: ACP-020A; ASTM E92 / E384 |
| Vickers < 1 kgf | (200 to 850) HV | 12 HV | |
| Knoop ≥ 1 kgf | (200 to 850) HK | 9 HK | |
| Knoop < 1 kgf | (200 to 850) HK | 13 HK | |
| Indirect Verification of Rockwell Hardness Testers3 | (80 to 84) HRA | 0.15 HRA | Method: ACP-020; ASTM E18 |
| (70 to 78) HRA | 0.17 HRA | ||
| (20 to 65) HRA | 0.27 HRA | ||
| (80 to 100) HRBW | 0.42 HRBW | ||
| (60 to 79) HRBW | 0.26 HRBW | ||
| (40 to 59) HRBW | 0.35 HRBW | ||
| (60 to 65) HRC | 0.32 HRC | ||
| (35 to 55) HRC | 0.33 HRC | ||
| (20 to 30) HRC | 0.41 HRC | ||
| (93 to 100) HREW | 0.57 HREW | ||
| (84 to 90) HREW | 0.57 HREW | ||
| (70 to 79) HREW | 0.44 HREW | ||
| (94 to 100) HRFW | 0.57 HRFW | ||
| (80 to 90) HRFW | 0.53 HRFW | ||
| (60 to 75) HRFW | 0.53 HRFW | ||
| (< 96) HRHW | 0.42 HRHW | ||
| (≥ 96) HRHW | 0.35 HRHW | ||
| (90 to 92) HR15N | 0.51 HR15N | ||
| (78 to 88) HR15N | 0.42 HR15N | ||
| (70 to 77) HR15N | 0.30 HR15N | ||
| (87 to 93) HR15TW | 0.30 HR15TW | ||
| (81 to 86) HR15TW | 0.28 HR15TW | ||
| (74 to 80) HR15TW | 0.27 HR15TW | ||
| (77 to 82) HR30N | 0.31 HR30N | ||
| (55 to 73) HR30N | 0.32 HR30N | ||
| (42 to 50) HR30N | 0.40 HR30N | ||
| (70 to 83) HR30TW | 0.21 HR30TW | ||
| (57 to 69) HR30TW | 0.22 HR30TW | ||
| (43 to 56) HR30TW | 0.62 HR30TW | ||
| (66 to 72) HR45N | 0.23 HR45N | ||
| (37 to 61) HR45N | 0.27 HR45N | ||
| (20 to 31) HR45N | 0.33 HR45N | ||
| (66 to 72) HR45TW | 0.43 HR45TW | ||
| (37 to 61) HR45TW | 0.47 HR45TW | ||
| (20 to 31) HR45TW | 0.70 HR45TW | ||
| (60 to 70) HR45XW | 0.75 HR45XW | ||
| (70 to 100) HR45XW | 0.24 HR45XW | ||
| EQUOTIP (Leeb) – Indirect Verification, Fixed Point3 | 801 Leeb D Hardness | 16 Leeb D Hardness | Method: ACP-020C; ASTM A956 |
| Scales & Balances3 | 1 mg to 320 g | 3.0 μg/g + 20 μg | Method: ACP-047 Class 1 weights |
| (> 320 to 5000) g | 3.0 μg/g + 1 mg | Class 1 weights | |
| (> 5 to 10) kg | 4.7 μg/g + 1 mg | Class 1 & 2 weights | |
| (> 10 to 30) kg | 0.72 g | Class 4 weights | |
| (30 to 20 000) lbs | 0.015 % of I.V. | Class F weights | |
| (> 20 000 to 200 000) lbs | 0.03 % of I.V. | Class F weights | |
| Direct Verification of Durometers Indenter Extension & Shape: Radius |
Up to 1 in | 0.0002 in | Method: ASTM D2240 Optical inspection under 50x magnification |
| Angle | Up to 90° | 0.05° | |
| Extension | Up to 1 in | 0.0002 in | Gage blocks |
| Spring Calibration Force: Type A, O | Up to 8.9 N | 0.0008 N | Load force stand |
| Type D, C | Up to 45 N | 0.03 N | |
| Type OO, OOO | Up to 1.2 N | 0.0007 N | |
| Rheometer3 Torque @ (0.5, 1, 3) degrees arc |
(0 to 200) lbf·in | 0.25 lbf·in | Torque; ASTM D5289; ASTM D2084 |
| Mooney Viscometer3 | (0 to 200) Mooney | 0.12 Mooney | ASTM D1646 |
| Pressure Measure & Generate, Transducers & Transmitters3 | (-14.7 to 300) psig | 0.009 psi | Method: ACP-038 Druck DPI-611 |
| (> 300 to 1000) psig | 0.040 psi | ||
| (> 1000 to 5000) psig | 0.005 % rdg + 0.06 psig | Druck CR2200 | |
| (> 5000 to 15 000) psig | 0.002 % rdg + 2.3 psig | Druck DPI104 | |
| (100 to 10 000) psig | 0.008 % rdg | Ametek T-100 DWT | |
| (500 to 60 000) psig | 0.042 % rdg | Fluke P3860 DWT | |
| Force, Measure – Transducers & Load Cells (Tension & Compression)3 | Up to 100 000 lbf | 0.4 % of Indicated Value | Method: ACP-049; ASTM E4 & load cells |
| Up to 500 000 lbf | 0.05 % of Indicated Value | ||
| Up to 600 000 lbf (Compression only) | 0.02 % of Indicated Value | ||
| Extensometer Displacement3 | Up to 2 in | 18 μin | Method: ACP-051; ASTM E83; ASTM E399 |
| Material Testing System Crosshead Displacement or Actuator Stroke3 | Up to 24 in | 0.001 in | Method: ACP-052; ASTM E2309/E2309M |
| Material Testing System Crosshead/Actuator Speed3 | 12 in/min | 0.006 in/min | Method: ACP-052; ASTM 2658 |
| Load Cells – Tension & Compression3 | Up to 5000 lbf | 0.02 % Indicated Value | Method: ACP-050; ASTM E74 |
| (5001 to 100 000) lbf | 0.02 % Indicated Value | ||
| Force Gauges3 | Up to 1000 lbf | 0.15 % of Indicated Value | Method: ACP-049A; NIST Class F weights |
| Dynamometer | Up to 100 000 lbf | 0.03 % of Indicated Value | Morehouse machine |
| Torque – Calibration of Torque Meters & Sensors | Up to 1000 lbf·ft | 0.05 % of Applied Load | Method: ACP-031; torque arms with weights, including specific arms |
| Torque Wrenches3 | (4 to 50) lbf·in | 0.17 lbf·in | Method: ACP-030; CDI torque calibrator using load cells |
| (30 to 400) lbf·in | 1.2 lbf·in | ||
| (80 to 1000) lbf·in | 1.4 lbf·in | ||
| (20 to 250) lbf·ft | 1.2 lbf·ft | ||
| (250 to 1000) lbf·ft | 1.4 lbf·ft | ||
| Mass – Fixed Points | 1 mg | 16 μg | Method: ACP-001 Comparison to Class 1 weights |
| 10 mg | 16 μg | ||
| 20 mg | 9.9 μg | ||
| 30 mg | 16 μg | ||
| 50 mg | 13 μg | ||
| 100 mg | 23 μg | ||
| 200 mg | 11 μg | ||
| 300 mg | 9.9 μg | ||
| 500 mg | 17 μg | ||
| 1 g | 12 μg | ||
| 2 g | 14 μg | ||
| 3 g | 15 μg | ||
| 5 g | 16 μg | ||
| 10 g | 22 μg | ||
| 20 g | 26 μg | ||
| 30 g | 28 μg | ||
| 50 g | 32 μg | ||
| 100 g | 55 μg | ||
| 200 g | 100 μg | ||
| 500 g | 670 μg | ||
| 1000 g | 1.3 mg | ||
| 2000 g | 10 mg | ||
| 5000 g | 10 mg | ||
| 10 kg | 280 mg | Comparison to Class 4 weights | |
| 0 g | 340 mg | ||
| 0.001 lb (0.453 592 37 g) | 12 μg | ||
| 0.002 lb (0.907 184 74 g) | 38 μg | ||
| 0.005 lb (2.267 961 9 g) | 16 μg | ||
| 0.01 lb (4.535 924 g) | 22 μg | ||
| 0.02 lb (9.071 847 g) | 47 μg | ||
| 0.05 lb (22.679 62 g) | 34 μg | ||
| 0.1 lb (45.3592 g) | 90 μg | ||
| 0.2 lb (90.7185 g) | 54 μg | ||
| 0.5 lb (226.796 g) | 190 μg | ||
| 1 lb (453.592 g) | 6.2 mg | ||
| 2 lb (907.185 g) | 9.1 mg | ||
| 5 lb (2267.96 g) | 22 mg | ||
| 10 lb (4535.92 g) | 25 mg | ||
| 25 lb (11 339.8 g) | 280 mg | ||
| 30 lb (13 607.8 g) | 260 mg | ||
| 50 lb (22 679.6 g) | 320 mg | ||
| 500 lb (226 796 g) | 6.2 g | Comparison to Class F weights | |
| 1000 lb (453 592 g) | 7.6 g |
Notes from the A2LA scope:
- 2 CMC (Calibration & Measurement Capability) is the smallest uncertainty the lab can achieve within its scope for routine calibrations of nearly ideal equipment, expressed at approximately 95 % confidence (k = 2). The actual uncertainty of a specific calibration may be larger depending on the customer’s device and conditions.
- 3 Field (on-site) calibration service is available for this calibration. Uncertainties achievable at a customer’s site are normally expected to be larger than the CMC listed.
- 4 Percentages are percentage of reading unless otherwise indicated. L = nominal length in inches, D = nominal diameter in inches, I.V. = Indicated Value.
- 6 The type of instrument or material being calibrated is defined by the parameter; the lab can calibrate instruments that measure or generate values in the ranges listed.
Source: A2LA Scope of Accreditation, Certificate No. 1848.01 (Revised 09/11/2025). The official PDF is the controlling document.
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