The process of conducting product certification can be broken down into several steps. First, a review of the product’s construction and design is performed, which includes careful evaluation of specific product information, including the bill of materials, applicable ratings of the individual components and materials, product design drawings, and spacing and dimensional requirements. From the review of all submitted information, it is then possible to determine the appropriate testing that will be required to sufficiently satisfy the requirements stated in the applicable standard(s).
Next comes the actual product testing phase, which is performed in accordance with the requirements of the applicable standard(s). Such tests may include temperature, electrical, dielectric, strain relief, environmental (wet location), and mechanical tests, among others. Step three includes the creation and issuance of the formal test report and “authorization to mark” (ATM), which grants the manufacturer permission to label the product with the applicable safety mark from an NRTL (an example would be the ETL Listed mark from Intertek). Finally, the manufacturer must agree to participate in the NRTL’s followup services program. This typically involves an initial audit of the manufacturing facility, as well as periodic manufacturing facility inspections to ensure consistent design, production, and labeling of the product. It is also necessary to maintain and update files to remain current with the latest revision of the applicable standards. Product safety standards.
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