What authority does an inspector hold when it comes to sampling materials at a coal mine?

An inspector at a coal mine holds the authority to take samples for testing to ensure compliance with safety and regulatory standards. This action is part of their role in overseeing that the mining operations adhere to legal and environmental regulations. Sampling is essential for evaluating the quality and safety of materials extracted from the mine, which can include checking for pollutants or ensuring that products meet specified requirements.

This authority is crucial because it empowers inspectors to effectively monitor and assess the mining process and its potential impact on workers and the environment. By collecting samples, inspectors can conduct necessary analyses to maintain the integrity of mining operations and uphold public safety.

The other options present actions that are not typically within the scope of an inspector's duties. For example, disposing of materials immediately, selling them for profit, or keeping them indefinitely would not align with the primary objective of ensuring compliance and safety in mining operations. Instead, the inspector’s role focuses on gathering information through sampling to inform regulatory decisions and practices rather than engaging in material disposal, sales, or indefinite retention.