Lead Field Sampling Guide
The following field sampling guide is designed for use as a reference for the field sampling consultant. It summarizes procedures and techniques for the sampling of lead in soil, paint, air and wipes as they impact the analytical procedures.
For additional information on field sampling equipment, field health and safety, certain regulatory requirements for field sampling , sampling strategies and data interpretation, refer to the appropriate documented methodology and/or regulatory agency.
| Matrix | Method | Collection Type | Recommended Volume | Preservation | Blanks | Comments |
|---|---|---|---|---|---|---|
| Soil | SW 846-7000B | Jar, hard shell tube, heavy mil zip lock bag | 30-40g (approx. 1/2 filled 50cc tube) | N/A | N/A | |
| Paint | SW 846-7000B | Heavy mil zip lock bag | Minimum 0.25gms. (approx. 2 square inches) | N/A | N/A | 0.25g is necessary to achieve a reporting limit of 0.008% by wt. The lab can accept sample weights as low as 0.020g; however, the reporting limit is inversely proportional to the sample wt. |
| Wipe | SW 846-7000B | Sampling wipes meeting ASTM standard E1792. (wipes are available at: Ghost Wipes – contact EMSL (800.220.3675) | 2 ft2 total area sampled (floors). Lesser areas are required for sills and troughs; see HUD and related guidelines. | N/A | Same type wipe as used in sampling | Under the AIHA Accreditation Program, the lab must report data for each individual sample as submitted. Reporting Composite results are discouraged. |
| Air | NIOSH 7082 | .8 micron mixed cellulose ester (MCE) filter | 200 – 1200 liters @ flow rate 1-4 L/min | N/A | Same type cassette as used in sampling |
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