Which item is used to indicate that testing has been performed and the results show pass or fail, and is signed by a testing laboratory official?

• A. Test Reports
• B. Manufacturer's Field Reports
• C. Certificates
• D. GPV

Answer: (A)

The main idea is the formal record that shows testing was actually performed and what the results were, with an official sign-off from the testing laboratory. A Test Report is the document produced by the testing lab that identifies the specimen, lists the test methods used, provides the results (pass or fail), and carries the signature of an authorized laboratory official. This signature gives accountability and confirms the results came from a qualified lab, making the document an auditable record of the testing.

Certificates can indicate compliance or passage of standards, but they don’t necessarily present the specific lab test results with the lab official’s signature. Manufacturer field reports are prepared by the producer and relate to field or on-site observations rather than controlled laboratory testing. GPV isn’t the standard term used for a lab-tested pass/fail result with lab authorization.