ASTM F2831-11
(Practice)Standard Practice for Internal Non Structural Epoxy Barrier Coating Material Used In Rehabilitation of Metallic Pressurized Piping Systems
Standard Practice for Internal Non Structural Epoxy Barrier Coating Material Used In Rehabilitation of Metallic Pressurized Piping Systems
SIGNIFICANCE AND USE
This practice is for use by designers and specifiers, regulatory agencies, owners, contractors, and inspection organizations who are involved in rehabilitation of pressurized piping systems.
SCOPE
1.1 This standard is intended to establish the minimum criteria necessary for use of a mechanically mixed, blended, epoxy barrier coating (AWWA Class I) that is applied to the interior of ½in. to 36 in. metallic pipe or tube used in pressurized piping systems for corrosion protection and to improve flow rates. There is no restriction as to the developed length of the piping system other than the method of application (“blow through”, spin cast or hand sprayed) and the characteristics of the epoxy coating being applied but the manufacturer’s engineer shall be consulted for any limitations associated with this product, process and its application for the end user.
1.2 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.
1.3 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)
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Designation:F2831–11
Standard Practice for
Internal Non Structural Epoxy Barrier Coating Material Used
In Rehabilitation of Metallic Pressurized Piping Systems
This standard is issued under the fixed designation F2831; 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 D4414 Practice for Measurement of Wet Film Thickness by
Notch Gages
1.1 This standard is intended to establish the minimum
F412 Terminology Relating to Plastic Piping Systems
criteria necessary for use of a mechanically mixed, blended,
2.2 AWWA Standard:
epoxy barrier coating (AWWA Class I) that is applied to the
1 AWWA C210 – Liquid Epoxy Coating Systems for the
interior of ⁄2 in. to 36 in. metallic pipe or tube used in
Interior and Exterior of Steel Water Pipelines
pressurized piping systems for corrosion protection and to
AWWA Rehabilitation of Water Mains : Manual of Water
improve flow rates. There is no restriction as to the developed
Supply Practices M28, Appendix
length of the piping system other than the method of applica-
2.3 NSF Standard:
tion (“blow through”, spin cast or hand sprayed) and the
NSF/ANSI 61 – Drinking Water System Components –
characteristics of the epoxy coating being applied but the
Health Effects
manufacturer’s engineer shall be consulted for any limitations
NSF/ANSI 14 Plastic Piping System Components and Re-
associated with this product, process and its application for the
lated Materials
end user.
2.4 Society of Protective Coatings Standards:
1.2 The values stated in inch-pound units are to be regarded
SSPC-SP 1 – Solvent Cleaning S
as standard. The values given in parentheses are mathematical
SSPC-SP 6/NACE No. 3 – Commercial blast cleaning
conversions to SI units that are provided for information only
and are not considered standard.
3. Terminology
1.3 This standard does not purport to address all of the
3.1 Definitions—Definitions are in accordance with Termi-
safety concerns, if any, associated with its use. It is the
nology F412 and abbreviations are in accordance with Termi-
responsibility of the user of this standard to establish appro-
nology D1600, unless otherwise specified.
priate safety and health practices and determine the applica-
3.2 Definitions:
bility of regulatory limitations prior to use.
3.2.1 accredited certifying organization, n—an agency ac-
2. Referenced Documents credited by an independent and authoritative conformity as-
sessment body (ANSI, ISO/ICC or equivelant) to operate a
2.1 ASTM Standards:
material and product listing and labeling (certification) system
D1600 Terminology for Abbreviated Terms Relating to
that is accepted by the Authority Having Jurisdiction.
Plastics
3.2.2 AWWA class I linings, n—Non-structural systems,
D3359 Test Methods for Measuring Adhesion by Tape Test
such as traditional CML and epoxy. (See AWWA Rehabilita-
D3363 Test Method for Film Hardness by Pencil Test
tion of Water Mains.)
D4541 TestMethodforPull-OffStrengthofCoatingsUsing
3.2.3 listed (third- party certified), adj—equipment or ma-
Portable Adhesion Testers
terials included in a list published by a listing agency (accred-
D4752 Practice for Measuring MEK Resistance of Ethyl
ited conformity assessment body) that maintains periodic
Silicate (Inorganic) Zinc-Rich Primers by Solvent Rub
inspection on current production of listed equipment or mate-
rials and whose listing states either that the equipment or
This practice is under the jurisdiction of ASTM Committee F17 on Plastic
Piping Systems and is the direct responsibility of Subcommittee F17.67 on
Trenchless Plastic Pipeline Technology.
Current edition approved May 1, 2011. Published May 2011. DOI: 10.1520/ Available fromAmerican Water WorksAssociation (AWWA), 6666 W. Quincy
F2831–11. Ave., Denver, CO 80235, http://www.awwa.org.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd.,Ann
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Arbor, MI 48113-0140, http://www.nsf.org.
Standards volume information, refer to the standard’s Document Summary page on Available from Society for Protective Coatings (SSPC), 40 24th St., 6th Floor,
the ASTM website. Pittsburgh, PA 15222-4656, http://www.sspc.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F2831–11
material complies with approved standards or has been tested conducted both ways, from small diameter to large and from
and found suitable for use in a specified manner. large diameter to small, to ensure all foreign material on the
3.2.4 metallic piping, n—a tubular shape made of metal,
wall of the pipe is removed.
intended to convey fluids or gas. Usually semi-rigid or rigid
6.4 Pipe Cleaning—A description of the quality and clean-
metal such as galvanized steel, galvanized wrought iron black
liness of the pipe to be coated shall be required. When viewed
steel, stainless steel, copper, brass or similar metal piping
without magnification, the cleaned surface shall be free of all
systems.
visible oil, grease, dirt, mill scale, rust and previously applied
coatings. Evenly dispersed, very light shadows, streaks, and
4. Material Requirements
discolorations caused by stains of mill scale, rust and old
4.1 When applied to potable water systems, epoxy barrier coatings shall be permitted to remain on no more than 33
coatings shall be evaluated, tested and certified for confor-
percent of the surface to be coated. The manufacturer’s
mancetoNSF/ANSI61,Section5fortheintendedapplication,
instructions shall require that the details of the visual observa-
fieldorfactoryorthehealtheffectsportionofNSF/ANSI14by
tion of the cleaned pipe to be recorded.
an accredited certifying organization.
6.5 Interior cleaning—If abrasives or other loose foreign
4.2 Epoxy barrier coatings shall be prepared for application
matter has entered the interior of the piping system, then clean,
using mechanically engineered metering and mixing methods
dry, oil-free compressed air shall be used to remove the loose
to ensure mixing and dispensing controls to manufacturer’s
foreign matter in a manner that does not adversely affect the
specifications.
cleaned surface.Alternatively, vacuum cleaning or other meth-
4.3 Epoxy barrier coatings shall be listed and identified for
ods may be used in place of compressed air.
the type of application (“blow through”, spin cast or hand
6.6 Coating thickness—The minimum coating thickness
sprayed).
shallberecommendedbythecoatingmanufacturerbutshallbe
greater than 0.01 in. (0.2454 mm). The coating thickness shall
5. Significance and Use
be determined in the field via a wet film thickness gauge,
5.1 This practice is for use by designers and specifiers,
meeting Practice D4414-Standard Practice for Measurement of
regulatory agencies, owners, contractors, and inspection orga-
Wet Film Thickness of Organic Coatings by Notched Gages.
nizations who are involved in rehabilitation of pressurized
6.7 Coating material preparation. Coating material prepara-
piping systems.
tion shall be in accordance with the manufacturer’s recommen-
dation.Application shall be performed when the temperature is
6. Coating Application
morethan5°F(2.8°C)abovedewpoint.Thetemperatureofthe
6.1 General—The epoxy coating shall be applied in accor-
mixed coating material shall not be lower than 50°F (10°C).
dance with the manufacturer’s recommendations. Application
The temperature of the piping system during application shall
shall be by blow through, airless-spray or centrifugal-wheel
conform to the recommendations of the coating manufacturer.
equipment or manufacturer-certified equal. “Blow through”
6.8 Cure—The coating manufacturer shall be consulted as
application shall be limited to 6-in. diameter pipe and shall be
to the proper cure time and methods but The minimum cure
applied from small diameter to large. Spin cast applications
time, cure temperature and flushing requirements shall be in
shall be pre-planned in accordance with the manufacturer’s
accordance with certification and listing requirements appro-
recommendations, which are dependent on pipeline diameter,
priate for the application. For potable water applications,
length and architecture and shall be applied at change of
minimum cure time, cure temperature and flushing require-
diameter both ways. Random spool pieces of pipe shall be
ments shall be in accordance with the NSF/ANSI 61 certifica-
installed within the network architecture for subsequent thi
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