ASTM E1728-99
(Practice)Standard Practice for Field Collection of Settled Dust Samples Using Wipe Sampling Methods for Lead Determination by Atomic Spectrometry Techniques
Standard Practice for Field Collection of Settled Dust Samples Using Wipe Sampling Methods for Lead Determination by Atomic Spectrometry Techniques
SCOPE
1.1 This practice covers the collection of settled dusts on hard surfaces using the wipe sampling method. These samples are collected in a manner that will permit subsequent digestion and determination of lead using laboratory analysis techniques such as Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES), Flame Atomic Absorption Spectrometry (FAAS), and Graphite Furnace Atomic Absorption Spectrometry (GFAAS).
1.2 This practice is used to collect samples for subsequent determination of lead on a loading basis (micrograms of lead per area sampled). This practice cannot be used to collect samples for subsequent determination of lead on a concentration basis (micrograms of lead per gram of settled dust collected).
1.3 This practice is not intended for collection of settled dust samples from rough or porous surfaces such as upholstery and carpeting.
1.4 This practice does not address the sampling design criteria (that is, sampling plan that includes the number and location of samples) that are used for risk assessment and other purposes. To provide for valid conclusions, sufficient numbers of samples must be obtained as directed by a sampling plan.
1.5 This practice contains notes that are explanatory and are not part of the mandatory requirements of this practice.
1.6 The values stated in SI units are to be regarded as the standard.
1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Standards Content (Sample)
Designation: E 1728 – 99
Standard Practice for
Field Collection of Settled Dust Samples Using Wipe
Sampling Methods for Lead Determination by Atomic
1
Spectrometry Techniques
This standard is issued under the fixed designation E 1728; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope using the same reagents and equipment.
2.1.2 field blank—a wipe that is exposed to the same
1.1 This practice covers the collection of settled dusts on
handling as field samples except that no sample is collected (no
hard surfaces using a wipe sampling method. These samples
surface is actually wiped). Analysis results from field blanks
are collected in a manner that will permit subsequent digestion
provide information on the analyte background level in the
and determination of lead using laboratory analysis techniques
wipe combined with the potential contamination experienced
such as Inductively Coupled Plasma Atomic Emission Spec-
by samples collected within the batch resulting from handling.
trometry (ICP-AES), Flame Atomic Absorption Spectrometry
2.1.3 sampling location—a specific area within a sampling
(FAAS), and Graphite Furnace Atomic Absorption Spectrom-
site that is subjected to sample collection. Multiple sampling
etry (GFAAS).
locations are commonly designated for a single sampling site.
1.2 This practice is used to collect samples for subsequent
2.1.4 sampling site—a local geographical area that contains
determination of lead on a loading basis (micrograms of lead
the sampling locations. A sampling site is generally limited to
per area sampled). This practice cannot be used to collect
an area that is easily covered by walking.
samples for subsequent determination of lead on a concentra-
2.1.5 wipe—disposable towelettes moistened with a wetting
tion basis (micrograms of lead per gram of settled dust
agent (see 2.1.5.1 and 2.1.5.2). These towelettes are used to
collected).
collect the sample and to clean sampling equipment. Wipe
1.3 This practice is not intended for collection of settled
brands or sources selected for use shall not contain significant
dust samples from rough or porous surfaces such as upholstery
background lead levels (see 2.1.5.1). Wipe brands or sources
and carpeting.
selected for use shall be of adequate width and thickness to
1.4 This practice does not address the sampling design
perform the collection procedure (see 2.1.5.2).
criteria (that is, sampling plan that includes the number and
2.1.5.1 Discussion 1— Laboratory analysis on replicate
location of samples) that are used for risk assessment and other
blank wipes should be used to determine background lead
purposes. To provide for valid conclusions, sufficient numbers
levels prior to use in the field. Brands of wipes that contain aloe
of samples must be obtained as directed by a sampling plan.
should be avoided due to increased potential of significant
1.5 This practice contains notes that are explanatory and are
background lead in these wipes. Background lead levels less
not part of the mandatory requirements of this practice.
than 5 μg per wipe are considered insignificant for most
1.6 The values stated in SI units are to be regarded as the
investigative purposes.
standard.
2.1.5.2 Discussion 2— A thin wipe having dimensions of
1.7 This standard does not purport to address all of the
approximately 15 by 15 cm is recommended. Use of multiple
safety concerns, if any, associated with its use. It is the
or extra-thick wipes can cause problems with laboratory
responsibility of the user of this standard to establish appro-
analysis activities. Use of wipes with smaller dimensions may
priate safety and health practices and determine the applica-
not be capable of holding settled dust contained within the
bility of regulatory limitations prior to use.
sampling area.
2. Terminology 2.1.6 wipe sampling kit—a sealable rigid walled container
with 50 mL minimum volume (see discussion below) and a
2.1 Definitions:
separate container of clean uncontaminated wipes for use in
2.1.1 batch—a group of field or quality control (QC)
collecting samples. One container of bulk packed wipes is
samples that are collected or processed together at the same site
typically used for collection of multiple samples.
2.1.6.1 Discussion—Use of a resealable plastic bag for
1
This practice is under the jurisdiction of ASTM Committee E-6 on Performance
holding and transporting the settled dust wipe sample is not
of Buildings and is the direct responsibility of Subcommittee E06.23 on Lead Paint
recommended due to the potential losses of settled dust within
Abatement.
Current edition approved Dec. 10, 1999. Published March 2000. Originally
published as ES 30 – 94. Last previous edition E 1728 – 95.
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