If a delivery recipient asks for a KOLAS calibration certificate even though a test-results document came with the product, check whether the two documents meet the same requirement. Both may be called certificates or reports, but the issuing party, work performed, and recorded measurement scope may differ. First clarify the exact purpose of the document requested by the recipient so you can determine what evidence is needed.
What do manufacturer test documents and accredited calibration record?
A manufacturer’s document may record product release testing, a function check, or results from its internal quality procedure. The gases, conditions, and individual instrument identification it includes vary by document, so read the actual entries. The fact that a document was included with the product does not establish that it covers calibration results for every channel requested for field use.
A KOLAS-accredited calibration certificate records measurement relationships and results produced by a calibration body within its accredited fields and scope. “Accredited” refers to the body’s recognized scope; it does not mean the body handles every model, gas, and measurement range. Therefore, compare the KOLAS status shown on the certificate with the issuing body’s current scope and the gas and measurement items requested.
Consider a hypothetical example. The delivered instrument has the manufacturer’s release inspection document, but the contract requires a KOLAS calibration result for a particular toxic-gas channel. Even if the release document records an initial function check, whether it covers calibration of the required channel and range is a separate question. Conversely, if the recipient requests only the manufacturer’s test result, you cannot assume that an additional accredited calibration is always required. The recipient’s conditions are the basis for deciding.
Compare the accredited scope with the actual instrument
Even if the gas is listed in a body’s accredited scope, the requested measurement range and conditions must also match. A body with multiple channels may have a different gas and measured quantity for each channel, so you cannot apply one channel’s scope to another. If you submit several instruments of the same model, link each body and result document by serial number to identify which instrument the result belongs to.
A calibration certificate is a record of a specific instrument measured under the stated conditions. It does not guarantee safety in every use environment or sensor lifetime, and it should not be assumed to include repair or adjustment automatically. Separating the purpose of the document from the instrument’s condition helps avoid confusing what the certificate answers with what requires a separate inspection.
Match three elements of a certificate to the actual delivery requirement
Distinguishing the issuer, accredited scope, and instrument identification helps determine what evidence is needed. The issuer identifies who produced the result; the scope shows what measurement was performed within accredited competence. The serial number and channel identify which instrument body and measurement the result refers to. These elements cannot substitute for one another, so one matching does not automatically mean the others are satisfied.
Imagine a hypothetical delivery in which two instruments of the same model are submitted, and only a particular toxic-gas channel on one of them needs accredited calibration. Even if the body’s accredited item is appropriate, a certificate for the other serial number is not the result for the instrument being submitted. Conversely, even if the serial number is correct, check whether the required gas and measurement range are included in the certificate and accredited scope. The certificate answers the required question only when the document, physical instrument, and recipient’s requirements match.
For example, even if a manufacturer’s document shows a model and serial number and records release test results for some gas channels, that alone does not establish that the channel was calibrated within a KOLAS-accredited scope. If there is a separate calibration certificate, compare its issuing body, accredited measurement item and range, and instrument identification individually. Conversely, do not conclude that delivery requirements are met simply because a document is titled “calibration certificate.” The key is whether the actual record matches the gas and range specified by the recipient. Reading what was done and the accredited scope, rather than only the title, shows the practical difference between the documents.
Numbers in a manufacturer’s document do not automatically make it equivalent to a KOLAS calibration result. The presence of a measurement value tells you what was checked; accreditation concerns who performed the work and within what recognized scope. If the recipient needs a numerical record, that is different from calibration performed by an accredited body within its scope, and the document choice may differ. Read the purpose of the measurement and the issuing conditions instead of relying on a title or a number alone.
The presence of a numeric result alone does not establish that the recipient’s documentation requirement is met. Tell AI Safety Korea Co., Ltd. the recipient’s document requirement and the instrument’s channels and serial number, and we can help check the required calibration scope and conditions that can be accepted.
Ask about the Required Calibration Certificate