ASTM D8008-20
(Practice)Standard Practice for Representative Field Sampling of Traffic Paints
Standard Practice for Representative Field Sampling of Traffic Paints
SIGNIFICANCE AND USE
5.1 For quality assessment and/or approval for use of traffic paint stored in the field, it is often necessary to obtain a representative sample for testing. Correct sampling of traffic paint is a skilled operation, and if not properly conducted with the right equipment and procedures, a sample may inadvertently fail one or more specification tests when evaluated by a testing laboratory. Among the test results that could be affected are solids content, resin content, TiO2 content, heat-age stability, freeze-thaw stability, and dry time. Any of these could inadvertently result in non-approval or penalties.
SCOPE
1.1 This practice covers procedures for obtaining representative field samples of mixed or unmixed waterborne, solventborne, or other liquid traffic paints, including two component reactive materials from drums, totes, or machine striping tanks. Traffic paint samples are often taken from storage containers in the field by paint suppliers or government agencies for laboratory testing to determine product quality and/or for approvals prior to striping. It is important that the samples taken are “representative” (have a composition reflecting the overall composition in the container). Although traffic paints can remain homogeneous for weeks or months, some will stratify over time and become non-homogeneous. Obtaining a representative sample can be challenging particularly in a field environment. The desired method for obtaining a liquid sample is to thoroughly mix the sample until homogeneous and then sample the mixture from the top. If complete mixing can’t be verified then an alternative practice is to obtain a sample using a liquid tube sampling device. These devices have the ability to capture a top-to-bottom core of paint from the container. Inner or outer rod tube samplers are recommended for sample extraction. The inner rod tube sampler is the preferred sampler.
1.2 The practice selected for representative sampling should have written agreement between the parties providing the product and those testing the product.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D8008 − 20
Standard Practice for
1
Representative Field Sampling of Traffic Paints
This standard is issued under the fixed designation D8008; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.1 This practice covers procedures for obtaining represen-
mendations issued by the World Trade Organization Technical
tative field samples of mixed or unmixed waterborne,
Barriers to Trade (TBT) Committee.
solventborne, or other liquid traffic paints, including two
component reactive materials from drums, totes, or machine
2. Referenced Documents
striping tanks. Traffic paint samples are often taken from
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2.1 ASTM Standards:
storage containers in the field by paint suppliers or government
D562 Test Method for Consistency of Paints Measuring
agencies for laboratory testing to determine product quality
KrebsUnit(KU)ViscosityUsingaStormer-TypeViscom-
and/or for approvals prior to striping. It is important that the
eter
samples taken are “representative” (have a composition reflect-
D1475 Test Method for Density of Liquid Coatings, Inks,
ing the overall composition in the container). Although traffic
and Related Products
paints can remain homogeneous for weeks or months, some
D3925 Practice for Sampling Liquid Paints and Related
will stratify over time and become non-homogeneous. Obtain-
Pigmented Coatings
ing a representative sample can be challenging particularly in
D5495 Practice for Sampling With a Composite Liquid
a field environment. The desired method for obtaining a liquid
Waste Sampler (COLIWASA)
sampleistothoroughlymixthesampleuntilhomogeneousand
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2.2 ISO Documents:
then sample the mixture from the top. If complete mixing can’t
ISO 1513 Paints and varnishes — Examination and prepa-
be verified then an alternative practice is to obtain a sample
ration of test samples
using a liquid tube sampling device. These devices have the
ISO 15528 Paints, varnishes, and raw materials for paints
ability to capture a top-to-bottom core of paint from the
and varnishes — Sampling
container. Inner or outer rod tube samplers are recommended
for sample extraction. The inner rod tube sampler is the
3. Terminology
preferred sampler.
3.1 The following terms apply to this practice:
1.2 The practice selected for representative sampling should
3.1.1 COLIWASA (composite liquid waste sampler), n—a
have written agreement between the parties providing the
tube type device that is typically used as a zone sampler for
product and those testing the product.
many types of liquids.
1.3 The values stated in inch-pound units are to be regarded
3.1.2 composite core sampler, n—a compartmented tube
as standard. The values given in parentheses are mathematical
type sampler that is potentially capable of obtaining a repre-
conversions to SI units that are provided for information only
sentative core sample.
and are not considered standard.
3.1.3 core sample, n—a sample extracted from a container
1.4 This standard does not purport to address all of the
top-to-bottom with a tube type device.
safety concerns, if any, associated with its use. It is the
3.1.4 liquid scoop, n—a type of liquid thief sampler with
responsibility of the user of this standard to establish appro-
compartments and slide closure that potentially can be used to
priate safety, health, and environmental practices and deter-
obtain a representative core sample
mine the applicability of regulatory limitations prior to use.
3.1.5 liquid thief sampler, n—a tube or scoop device used to
1.5 This international standard was developed in accor-
extract a liquid sample.
dance with internationally recognized principles on standard-
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This practice is under the jurisdiction of ASTM Committee D01 on Paint and For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Related Coatings, Materials, and Applications and is the direct responsibility of contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Subcommittee D01.44 on Traffic Coatings. Standards volume information, refer to the standard’s Document Summary page on
CurrenteditionapprovedJune1,2020.PublishedJuly2020.Originallyapproved the ASTM website.
3
in 2015. Last previous edition approved in 2015 as D8008 – 15. DOI: 10.1520/ Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
D8008-20. 4t
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D8008 − 15 D8008 − 20
Standard Practice for
1
Representative Field Sampling of Traffic Paints
This standard is issued under the fixed designation D8008; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice covers procedures for obtaining representative field samples of mixed or unmixed waterborne, solventborne,
or other liquid traffic paints paints, including two component reactive materials from drums, totes, or machine striping tanks. Traffic
paint samples are often taken from storage containers in the field by paint suppliers or government agencies for laboratory testing
to determine product quality and/or for approvals prior to striping. It is important that the samples taken are “representative” (have
a composition reflecting the overall composition in the container). Although traffic paints can remain homogeneous for weeks or
months, some will stratify over time and become non-homogeneous. Obtaining a representative sample can be challenging
particularly in a field environment. The desired method for obtaining a liquid sample is to thoroughly mix the sample until
homogeneous and then sample the mixture from the top. If complete mixing can’t be verified then an alternative practice is to
obtain a sample using a liquid tube sampling device. These devices have the ability to capture a top-to-bottom core of paint from
the container. Inner or outer rod tube samplers are recommended for sample extraction. The inner rod tube sampler is the preferred
sampler.
1.2 The practice selected for representative sampling should have written agreement between the parties providing the product
and those testing the product.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.4 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D562 Test Method for Consistency of Paints Measuring Krebs Unit (KU) Viscosity Using a Stormer-Type Viscometer
D1475 Test Method for Density of Liquid Coatings, Inks, and Related Products
D3925 Practice for Sampling Liquid Paints and Related Pigmented Coatings
D5495 Practice for Sampling With a Composite Liquid Waste Sampler (COLIWASA)
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2.2 ISO Documents:
ISO 1513 Paints and varnishes — Examination and preparation of test samples
ISO 15528 Paints, varnishes, and raw materials for paints and varnishes — Sampling
3. Terminology
3.1 The following terms apply to this practice:
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This practice is under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.44 on Traffic Coatings.
Current edition approved July 1, 2015June 1, 2020. Published August 2015July 2020. Originally approved in 2015. Last previous edition approved in 2015 as D8008 – 15.
DOI: 10.1520/D8008-15.10.1520/D8008-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D8008 − 20
3.1.1 COLIWASA (composite liquid waste sampler), n—a tube type device that is typically used as a zone sampler for many
types of liquids.
3.1.2 composite core sampler, n—a compartme
...
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