Which of the following is an advantage of using XRF for testing?

Using X-ray fluorescence (XRF) for lead testing has the significant advantage of speed. XRF is a non-destructive analytical technique that allows for immediate results. It can quickly analyze materials for lead presence without requiring any physical alteration or destruction of the items being tested. This rapid assessment is particularly beneficial in situations where time is of the essence, such as when assessing properties for lead hazards or during inspections.

In contrast, other methods of lead testing, such as laboratory analysis of samples, often take longer to yield results and can involve more extensive procedures. The efficiency of XRF in obtaining immediate feedback allows assessors to make timely decisions regarding remediation and safety measures, which is essential in lead risk assessment scenarios. This speed makes XRF a preferred choice for many professionals in the field.