Fire Related Testing Program Combustion By-Products (Char, Black Carbon/Soot, Ash)
Purpose of the Test
This test is designed for analysis of fire residues for presence of analytes of interest (char, black carbon/soot and ash). The results of this test offers the client valuable information related to the extent of damage produced by a fire at a residential, industrial or wildfire location. These results can be used for cleaning assessment and/or insurance claims.
Sampling
Surface sampling:
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Alcohol prep wipes (recommended surfaces: TV’s computer displays, plastic surfaces, furniture, windows, mirrors, internal surfaces of refrigerators; avoid painted surfaces)
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Microvacuum: 25 mm 0. 45 micron or 0.8 microns pore size MCE cassettes (recommended surfaces: main living areas, from top of interior door frame, window frame, from corners of floors, door tracks, attic areas)
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- Tape lifts (recommended surfaces- same as for alcohol prep wipes)1
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Air Sampling
- PVC pre-weighed cassettes (for NIOSH 5000 only)
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- 25 mm 0.45 micron pore size MCE cassettes1; Flow rate 0.5-16 L/min, Min volume 400 L
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Levels of Analysis
We offer a diverse combination of analytical levels depending on the complexity of the methods used in the analysis and tailored to the client’s specific needs. The analysis levels are listed below. The analytical complexity level and the overall value of the package increases from level 1 to 4.
| Level 1. |
Char + Soot1 + Ash |
| Level 2. |
Char + Soot (confirmation level) + Ash |
| Level 3. |
Char + Soot (confirmation level) + Ash+ common components of environmental dust (such as fibrous glass, biological material, cellulose, synthetic fibers, pollen, quartz, calcite) |
| Level 4. |
Char + Soot (confirmation level) + Ash+ common components of environmental dust (fibrous glass, biological material, cellulose, synthetic fibers, pollen, quartz, calcite) + Elemental composition of soot, char, and ash by SEM/EDX + pH (to determine overall corrosivity of the dust) |
Level 1 is a screening level, very affordable and valuable for quick and easy assessment of the overall degree of contamination.
Levels 2, 3 and 4 offer analysis using the best analytical methods for confirmatory presence of all the analytes of interest (including soot confirmatory analysis based on ASTM D6602).
Results
The concentration of analytes of interest in bulk samples is derived by Visual Estimation Technique (VAE). The technique estimates the relative projected area of a certain type of particulate in a mixture by comparison with data derived from analysis of calibration materials having similar texture and particulate content. NIOSH 5000 is a gravimetric method. Counting technique is used for Zefon and MCE air sample cassettes.
The analysis is performed by analysts trained in advanced techniques of particles identification. Additional consultation regarding interpretation of the results and regulations is provided free of charge by senior scientists. Fast turn-around times can be provided: same day and week-end analysis available. Our senior scientists have experience in litigation support and expert witness testimony.
The analysis is performed by analysts trained in advanced techniques of particles identification. Fast turn-around times can be provided: same day and week-end analysis available. Our senior scientists have experience in litigation support and expert witness testimony.
Additional Analytical Services
We hope for the speedy recovery for communities impacted from these wildfires. As the leading laboratory for Fire & Smoke Damage Testing Services, EMSL Analytical, Inc. can provide a wide range of analytical services along with emergency analysis during weekends and off hours.
Post Fire Debris Cleanup and Recovery/Removal of Hazardous Materials
Air Sample Analysis
- Metals in Air (NIOSH 7303)
- Mercury in Air (NIOSH 6009 and OSHA 145)
- PAHs (NIOSH 5506)
- Silica (NIOSH 7500)
- Asbestos: PCM(NIOSH 7400)
Soil Sample Analysis
- CAM 17 Metals
- Asbestos by PLM and TEM
How Can EMSL Help?
EMSL Analytical, Inc provides Same Day analysis and Rush/Weekend services if needed.
Combustion By-Products Overview
Fire Investigation Testing Services
Lithium-Ion Battery Fire Residues Analysis
1: Soot analysis is limited to presumptive analysis level only; TEM analysis for confirmation per ASTM D6602 cannot be performed on tape lifts, AIR-o-cells, CSI cassettes samples. In order to resolve the submicron size and the aciniform morphology of the particles confirmatory analysis by Transmission Electron Microscopy (TEM) is needed.
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