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Force Calibration Laboratory

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

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
ASTM E74 Class AA Class A Both Both
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.

Force Calibration Chain for standards compliancy

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

Related Information

Verification Software

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