What does a XRF negative classification indicate?

What does a XRF negative classification indicate?

• A. Lead is present on the testing combination at or above the standard.
• B. Lead is not present on the testing combination at or above the standard.
• C. The test results are inconclusive.
• D. The surface cannot be assessed.

Answer: (B)

A negative XRF classification means the tested surface does not exceed the lead standard for that area. In XRF testing, the device measures the lead content and compares it to the action level. If the reading is at or above the standard, lead is considered present above the threshold; if it’s below, that surface is classified negative. This indicates the area tested does not require remediation under the standard, though it doesn’t guarantee zero lead everywhere on the item.

A negative XRF classification means the tested surface does not exceed the lead standard for that area. In XRF testing, the device measures the lead content and compares it to the action level. If the reading is at or above the standard, lead is considered present above the threshold; if it’s below, that surface is classified negative. This indicates the area tested does not require remediation under the standard, though it doesn’t guarantee zero lead everywhere on the item.