Full Particle IdentificationSM (FPID):
FPID is a continuation of the OPID analysis. The
process begins with an OPID to identify the particles
in the analyte list. Then the remaining unidentified
material is analyzed by electron microscopy. In many
cases infrared spectrometry (FT-IR) or X-ray
Diffraction Spectrometry (XRD) is also utilized. This
test is designed to identify the majority of materials
commonly occurring in indoor environments. The
standard analytes included in the FPID include:
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Everything from the OPID list
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Minerals, metals and oxides such as rust
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Construction debris such as gypsum, mortar, and wood dust