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Specialist remediation, from survey to reinstatement, since 1984
White Knight Service GroupInstruct a survey

Soot and char microscopy

Checks whether fire-related particulate remains on a surface after cleanup works are completed.

When to use it

After a fire, soot and other fire-related particulate can remain on surfaces even after visible cleanup, including within HVAC systems and other unseen voids. Soot and char microscopy checks whether contamination remains once cleaning works are complete, before a space is signed off as clear.

How sampling works

Surface samples are taken from the areas being checked, including inside ductwork and other HVAC surfaces where relevant.

What’s in the report

The sample is examined under a microscope in our laboratory to identify whether fire-related particulate is present. Results support a clear decision on whether further cleaning is needed before the area is returned to use.

Other tests in our laboratory

Need this test on a current job?

Tell us what you're trying to confirm and we'll arrange sampling alongside your site work, or as a standalone instruction.