Category: ASTM E74

Load Cell Simulator Calibration Requirements to Calibrate my Digital Indicator: Is it Worth it? 

Load Cell Simulator Calibration Requirements to Calibrate my Digital Indicator: Is it Worth it? We have been asked a bit more frequently lately about the benefits of calibrating everything as a system versus calibrating the load cells and indicators separately and intermixing them using a calibrated load cell simulator. Being able to intermix any load […]

Easy to Use ASTM E74 Load Cell Selection Guide

ASTM E74 Load Cell Selection Guide Download the spreadsheet for ASTM E74 load cell selection spreadsheet @ Many people get confused with load cell specifications and what they mean. When a company says the load cell is accurate to 0.01 % of full scale, what does that mean? If calibrated using the ASTM E74 […]

Understanding the Calibration Coefficients for Load Cells and Other Force-Measuring Devices

What Calibration Coefficients Do ASTM E74, ISO 376, and other standards may use calibration coefficients to characterize the performance characteristics of continuous reading force-measuring equipment better. These standards may use higher-order fits such as a second or third-order fit (ISO 376) or ASTM E74 allows higher-order fits up to as high as a 5th order. […]

ASTM E74 and Accuracy Statements: Why an Accuracy Statement does not Belong on Every Calibration Certificate

The current ASTM E74-18 standard is the title Standard Practice for Calibration and Verification for Force-Measuring Instruments. Here at Morehouse, we support the best practices that are outlined in the ASTM E74 standard as the representation of the expected performance of a load cell or other force-measuring instrument. What may be a bit of an […]

ASTM E74-18 Changes

It’s been five years since ASTM E74 was last updated.  The last version of the standard was ASTM 13a, and I believe we may have an ASTM E74-18a.  However, the new standard is released and this blog is going to detail some of the major changes between ASTM E74-13a and ASTM E74-18. A list of […]

ASTM E74 is not the same as ISO 376

Morehouse has been performing both ASTM E74 and ISO 376 calibrations for more than fifteen years. We have been calibrating in accordance with the ASTM E74 standard since its introduction in 1974, and performing ISO 376 calibrations since sometime in early 2000. Prior to early 2000, ISO-376 was a DIN standard that later became EN-10002-3 […]

Recommendations for Specifying ASTM E74 Calibration Services

This document is intended to help properly specify what you may need for ISO/IEC 17025 accredited ASTM E74 calibrations to ensure you are getting exactly what you need: Verification of the Calibration Supplier Can meet the Requirement. Reviewing many accredited laboratory Scope of Accreditation and certificates of calibration from the accredited laboratories, Morehouse has witnessed […]

Top 3 ASTM E74 Load Cell Calibrations Mistakes

We are writing this post to clear some common ASTM E74 misconceptions.   We have written two early blogs on the ASTM E74 standard ASTM E74 Simplified, Calculating CMC using ASTM E74 standard and have a slide share presentation detailing the ASTM E74 standard. This blog post is to help clear the three top misconceptions commonly observed in industry. […]

ASTM E74 Calibration Procedure Simplified

ASTM E74 Calibration Procedure Simplified Steps recommended performing calibration in accordance with ASTM E74 Stabilization Allow UUT to come to room temperature Warm-up Instrumentation Preparation Select 10-11 Test points IF UUT IS TO BE USED IN BOTH INCREASING AND DECREASING FORCES,  THE DEVICE MUSE BE CALIBRATED IN BOTH MODES.  THE SELECTION OF FORCE POINTS SHOULD […]

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