What is NOT a requirement for an Independent Laboratory?

An Independent Laboratory is characterized by its objectivity and ability to perform tests and evaluations without influence from the manufacturer or supplier of the products being tested. One of the key attributes that support this independence is that such laboratories are not required to be located on the manufacturer's premises. This separation helps ensure unbiased testing results and fosters credibility in the evaluation of products.

The other options, such as having trained personnel, inspecting equipment periodically, and maintaining calibrated instruments, are essential requirements for ensuring the reliability and accuracy of tests conducted by the laboratory. Trained personnel ensure that testing is conducted in accordance with established standards and methodologies, while periodic inspections and calibrated instruments help maintain the integrity of the testing process. Thus, these attributes contribute to the overall competency and trustworthiness of the testing performed by the Independent Laboratory.