Proper calibration is critical to quality manufacturing operations. Companies that require calibration services must choose from three different delivery methods. These delivery methods are internal calibration, external calibration service and a combination of both methods. This article will cover each method and help you to distinguish which is best for your organization.
Internal calibration refers to when the company itself provides the calibration. Companies that perform their own internal calibration have items known as “masters” or “standards” that are used to calibrate working tools. Internal calibration is a common approach in machine shops, testing laboratories, and manufacturing organizations, where master gauge blocks, or “Jo blocks,” are used to certify micrometers, calipers and similar items. It’s important to justify the operation’s expense, so internal calibration should periodically go through a cost benefit analysis.
External calibration is when the service is outsourced to calibration experts, such as e2b calibration. A company usually depends on its quality manager to determine an external calibration provider. The quality manager must understand that calibration work is no different than any other high-end service. Suitable, qualified and skilled service usually requires a higher premium than what the lowest bidder might quote. Another differentiation that can affect cost is ISO 17025 accreditation. An accredited lab has the ability to offer accredited calibrations. This type of calibration meets higher quality standards. make sure whichever lab you choose can meet or exceed quality requirements. But, more often than not, low premiums are directly correlated to the low quality and attention to standard of a service.
The third approach combines internal and external calibration service. This approach allows the company itself to calibrate the master items, yet it is important to evaluate the cost and quality ratio in determining which instruments should be calibrated internally and which externally. What is most important is that a company’s product meets their customers’ needs, so when it comes to calibration services, a company should not compromise on quality.