What type of documentation is required for post-weld heat treatment as per AWS D1.1?

Documentation of post-weld heat treatment is a critical aspect of ensuring that the welding process meets the standards outlined in the AWS D1.1 Structural Welding Code. The correct choice emphasizes that thorough documentation must include both the procedures utilized during the heat treatment process and the temperature records achieved throughout that process.

This requirement ensures that the heat treatment is consistently applied according to established procedures and allows for traceability and verification of the process. By maintaining detailed records of the procedures, it guarantees that any post-weld heat treatment has been executed correctly and effectively, which is crucial for the integrity of the welds and the overall performance of the structural steel components.

In contrast, just documenting the time of treatment alone would not sufficiently verify that the heat treatment was conducted correctly or that the appropriate temperatures were maintained, which could lead to inadequate treatment and potential failure of the welded joint. Similarly, while having records of personnel may be beneficial for accountability, it does not provide the essential information needed to assure that the heat treatment was performed in compliance with the standards, thus lacking a full scope of documentation required by AWS D1.1.