What is the Difference Between a Certificate of Conformity and a Proof Test Certificate for a Lifting Sling?

Safety and compliance are crucial in lifting activities. If you are going to be using lifting slings, make sure that you are aware of the documentation that comes with these products. One of the two most important documents that we usually find in relation to lifting slings is the Certificate of Conformity and the Proof Test Certificate. This guide will shed light on the variations between these two certificates so that you can be sure to choose the most suitable lifting sling, be it a webbing or a round sling.

Understanding the Certificate of Conformity

A Certificate of Conformity (CoC) is a signed document that the producer issues to guarantee that a lifting sling complies with specific rules.

Key Features of the Certificate of Conformity

Compliance Declaration: The CoC is a statement of the lifting sling's compliance with the designated national and international standards which the manufacturer must provide (ISO or EN standards, for example). This circuit of conformance stands for the safety of lifting dispenses.

Product Information: The certificate of conformity contains information about the product that is the most essential and basic, such as its type, the exact dimensions, and the raw materials employed in the process.

Manufacturer Accountability: By issuing a CoC, the manufacturer takes responsibility for the quality and safety of the lifting sling.

Importance for Users

For users, the Certificate of Conformity provides peace of mind. It confirms that the product, has been manufactured to meet safety standards. This document is often required for regulatory compliance in various industries, ensuring that users can operate safely and legally.

Understanding the Proof Test Certificate

In contrast, a Proof Test Certificate is a document that says that a lifting sling has been given a hard test to prove that it is still a safe device and that it can be relied upon when in use under load. This certificate is specific to the actual performance of the sling.

Key Features of the Proof Test Certificate:

Testing Results: The Proof Test Certificate is evidence that the test concern of the trial of the sling is witnessed by those present. This might even necessitate the use of the sling beyond its working load limit (WLL) to check if it still remains firm after being stressed by unplanned loads.

Testing Methodology: The certificate outlines what ways were applied during the tests, which include the condition that prevailed at the time of the sling trial. Such transparency will help the users infer the test's results' reliability.

Independent Verification: Often, proof tests are conducted by independent testing laboratories. Having another independent party verify the results works as a seal of honesty; the results are made without any particular interest and are checked by a neutral party.

Importance for Users

Lifters are the primary users of the Proof Test Certificate, a document that guarantees the safe use of the lifting gear under actual working conditions. It gives them peace of mind as they are assured that the sling is tested to the maximum level and it is ready for any operation.

Comparing the Two Certificates

Focus and Purpose

Certificate of Conformity: Emphasizes the adherence to the necessary standards and regulations and thus shows a user that a lifting sling is safe and committed to safety requirements. 

Proof Test Certificate: Points out how the lifting sling behaves under the loading condition and thus it confirms that the sling is able to withstand the loads indicated by the test.

Content and Details 

Certificate of Conformity: In it, one can find the information related to compliance, product specifications, manufacturer accountability, etc.

Proof Test Certificate: This cert entails the outcomes of experiments, methods and ways to verify the declared results by an independent party.

Conclusion

Understanding the differences between a Certificate of Conformity and a Proof Test Certificate is vital for anyone involved in lifting operations. Both documents serve important roles in ensuring safety and compliance, but they focus on different aspects of the lifting sling's performance and reliability.

At Juli Slings, we prioritize quality and safety in our lifting solutions. Our lifting slings, including webbing slings and round slings, come with the necessary documentation to ensure compliance and performance. Trust Juli Slings for your lifting needs, and contact us now!