Sample collection is the process of gathering materials or specimens for analysis or testing. This can include biological samples like blood or saliva, environmental samples such as soil or water, and even product samples for quality control. Proper techniques and tools are essential to ensure that the samples are representative and free from contamination. Once collected, samples are often labeled and stored under specific conditions to preserve their integrity. The collected samples are then sent to laboratories for further examination, where scientists or technicians analyze them to obtain valuable information related to health, safety, or research objectives.