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The correct choice regarding the information not required on concrete test reports is the testing equipment used. Concrete test reports are essential documents that provide critical information about the properties and strength of concrete. Typically, they include a variety of details that are crucial for assessing the concrete's compliance with applicable standards and specifications.

While the concrete mix number, batch time and date, and the laboratory name and address are all fundamental pieces of information that ensure traceability, accountability, and quality control, the specific testing equipment used might not necessarily be listed. This is because test reports generally focus more on the results and relevant environmental conditions rather than the operational specifics of the testing process itself.

Not having the equipment details included in the report does not diminish the report's value; however, it highlights that the emphasis is placed on the outcomes of the tests and the concrete's performance rather than the particular tools that were utilized to obtain those results.