EP 1110-1-29
31 Aug 01
(703) 849-8888 (voice)
(703) 207-3561 (fax)
http://www.aiha.org/fees.html/
The text below gives the Contractor two options to generate spiked wipe samples:
In Option a, the Contractor must obtain the same wipe material used by the commercial source
in preparing the spikes, to collect field samples.
Option b allows the Contractor to use a second independent laboratory to prepare spikes sent
to the laboratory doing the analysis of the field data. NIST traceable materials must be used by
the laboratory in preparing the spike samples.
******************************************************************************
The Contractor shall submit double-blind (spiked) (See Glossary) QA dust wipe samples to the
laboratory at a frequency of one double-blind sample per 50 field samples collected (with a minimum of
at least one) using one of the two following options:
a. The Contractor shall obtain commercially prepared spiked wipe samples that are prepared
by meeting the same QA/QC requirements required in preparing spiked wipe samples used by the
AIHA in its management of the Environmental Lead Proficiency Analytical Testing (ELPAT) laboratory
certification program, for submittal to the laboratory. [One source of spiked samples meeting the
QA/QC requirements is listed on the AIHA web site: http://www.aiha.org] The Contractor shall obtain
from the commercial source, wipes of the same brand and type as those used to prepare the spiked
samples. The Contractor shall use these wipes to collect field samples and to prepare field blank
samples.
b. The Contractor shall hire a laboratory to prepare spiked wipe samples using National
Institute of Standards and Testing (NIST) traceable materials. Spiked samples shall be prepared using
leaded dust, not lead in solution. The lead concentration in the spiked wipe samples shall approximate
the amount of lead in the lead action level criteria for hard floors in Table A-1 of this SOW. The
Contractor shall provide uncontaminated wipes of the same brand and lot as the wipes that will be used
to collect field samples, to the laboratory preparing the spiked samples. The laboratory shall use these
wipes to prepare the spiked wipe samples. The laboratory preparing the spiked samples shall be
independent of the laboratory that will be used to analyze the field samples and field QA samples.
There shall be no indication to the laboratory analyzing the field samples, by sample identification
numbers or other means, that the spiked samples are QA samples.
2.3.2.3
Field Rinsate Blank QA Samples (Soil)
One rinsate blank (see Glossary) for coring or spoon sampling techniques (refer to ASTM E1727) shall
be included with each batch of soil samples sent to the laboratory.
A-21
Previous Page
