What is the maximum allowed deviation between resistance measurements on bolted connections?

In the context of measuring resistance on bolted connections, the standard typically allows for some degree of variability in the measurements due to factors such as connection quality, environmental conditions, and equipment calibration. The correct answer allows for flexibility by permitting a deviation based on the lowest value recorded. This approach recognizes that resistance measurements can vary, and as such, it helps in assessing the reliability of the connections without strictly enforcing perfect uniformity in measurements.

Allowing a deviation based on the lowest value provides a practical guideline for evaluating whether a bolted connection is acceptable. It accounts for minor fluctuations that can occur during testing, while still ensuring that the connection is functional and does not have severely degraded resistance levels.

In contrast, the other options either set unrealistic expectations for deviation or impose more stringent limits that don't align with common industry practices, making them less applicable in real-world scenarios.