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Instron's Force Calibration Laboratory represents unique capability in the industry.
We maintain several deadweight stacks, with the largest one capable of generating
1MN (240,000 lbf) with an uncertainty of applied force of less than 0.0015%. The
lab is NVLAP (Lab Code 200301-0) accredited, and all standards are directly traceable
to NIST.
We perform calibrations and verifications to internationally recognized standard
methods including ASTM E74 and ISO 376 for calibration of standards, and ASTM E4
and ISO 7500-1 for verification of force on testing machines.
Capabilities for the Calibration of Secondary Standards
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Calibration Method |
Best in Class
(Up to 130,000 lbf Calibration) |
Best in Class
(Up to 240,000 lbf Calibration) |
Tension / Compression Mode |
Increasing / Decreasing Loads |
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ASTM E74 |
Class AA |
Class A |
Both |
Both |
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ISO 376 |
Class OO |
Class OO |
Both |
Both |
The lab calibrates the “working standard” transducers used by our field
specialists. Because of the low uncertainties associated with our deadweight stacks
(compared to other labs that use secondary standard load cells), we are able to
shorten the “chain of calibration” and equip the field with load cells
calibrated with a lower uncertainty than is typical. For no extra cost, we can verify
your testing machine is 0.5% instead of the 1% specified in ASTM and ISO standards.
For more information on our in-house capabilities, view our Calibration of Force Standards Brochure
For more information on our field calibration capabilities, view our Force Verification Brochure
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