When should single surface wipe samples be used?

When should single surface wipe samples be used?

• A. When information is needed to determine leaded dust levels in a specific location
• B. When overall room average is sufficient
• C. When cleaning costs must be minimized
• D. When sampling time is unlimited

Answer: (A)

A single surface wipe sample is used when you need to know the leaded dust level on a specific surface at a defined location. This provides a focused, location-by-location measurement—perfect for checking a particular surface (like a window sill or a high-contact area) for compliance with dust-lead limits or to identify hotspots that need remediation. If you need an overall room average, you would collect multiple samples from different surfaces and average them, so a single sample wouldn’t suffice. Budget or time considerations don’t determine the method; the choice is driven by whether you need information for one exact surface or for the entire room.

A single surface wipe sample is used when you need to know the leaded dust level on a specific surface at a defined location. This provides a focused, location-by-location measurement—perfect for checking a particular surface (like a window sill or a high-contact area) for compliance with dust-lead limits or to identify hotspots that need remediation.

If you need an overall room average, you would collect multiple samples from different surfaces and average them, so a single sample wouldn’t suffice. Budget or time considerations don’t determine the method; the choice is driven by whether you need information for one exact surface or for the entire room.