ASTM D6041-18

Standard Specification for Contact-Molded “Fiberglass” (Glass-Fiber-Reinforced Thermosetting Resin) Corrosion Resistant Pipe and Fittings

SCOPE
1.1 This specification covers pipe and fittings fabricated by contact molding, for pressures to 150 psi and made of a commercial-grade polyester resin. Included are requirements for materials, properties, design, construction, dimensions, tolerances, workmanship, and appearance.  
1.2 This specification does not cover resins other than polyester, reinforcing materials other than glass fibers or fabrication methods other than contact molding.
Note 1: For the purposes of this specification, the term polyester resin will include both polyester and vinylester resins.  
1.3 This specification does not cover the design of pipe and fittings intended for use with liquids heated above their flash points.  
1.4 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are provided for information purposes only.  
1.5 The following precautionary caveat pertains only to Section 10, the test methods portion, of this specification: 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.
Note 2: There is no known ISO equivalent to this standard.  
1.6 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

• Status: Historical
• Publication Date: 31-Oct-2018
• ICS: 23.040.20 - Plastics pipes
• ICS: 23.040.45 - Plastics fittings
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.23 - Reinforced Thermosetting Resin Piping Systems and Chemical Equipment

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D6041 − 18
Standard Specification for
Contact-Molded “Fiberglass” (Glass-Fiber-Reinforced
Thermosetting Resin) Corrosion Resistant Pipe and
1
Fittings
This standard is issued under the fixed designation D6041; 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* 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This specification covers pipe and fittings fabricated by
C581 Practice for Determining Chemical Resistance of
contact molding, for pressures to 150 psi and made of a
Thermosetting Resins Used in Glass-Fiber-Reinforced
commercial-grade polyester resin. Included are requirements
Structures Intended for Liquid Service
for materials, properties, design, construction, dimensions,
C582 Specification for Contact-Molded Reinforced Thermo-
tolerances, workmanship, and appearance.
setting Plastic (RTP) Laminates for Corrosion-Resistant
1.2 This specification does not cover resins other than
Equipment
polyester, reinforcing materials other than glass fibers or
D618 Practice for Conditioning Plastics for Testing
fabrication methods other than contact molding.
D638 Test Method for Tensile Properties of Plastics
D648 Test Method for Deflection Temperature of Plastics
NOTE 1—For the purposes of this specification, the term polyester resin
will include both polyester and vinylester resins.
Under Flexural Load in the Edgewise Position
D883 Terminology Relating to Plastics
1.3 This specification does not cover the design of pipe and
D1599 Test Method for Resistance to Short-Time Hydraulic
fittings intended for use with liquids heated above their flash
Pressure of Plastic Pipe, Tubing, and Fittings
points.
D1600 Terminology for Abbreviated Terms Relating to Plas-
1.4 The values stated in inch-pound units are to be regarded
tics
as the standard. The SI units given in parentheses are provided
D2583 Test Method for Indentation Hardness of Rigid Plas-
for information purposes only.
tics by Means of a Barcol Impressor
D2584 Test Method for Ignition Loss of Cured Reinforced
1.5 The following precautionary caveat pertains only to
Resins
Section 10, the test methods portion, of this specification: This
D3567 Practice for Determining Dimensions of “Fiberglass”
standard does not purport to address all of the safety concerns,
(Glass-Fiber-Reinforced Thermosetting Resin) Pipe and
if any, associated with its use. It is the responsibility of the user
Fittings
of this standard to establish appropriate safety, health, and
D3681 Test Method for Chemical Resistance of “Fiberglass”
environmental practices and determine the applicability of
(Glass–Fiber–Reinforced Thermosetting-Resin) Pipe in a
regulatory limitations prior to use.
Deflected Condition
NOTE 2—There is no known ISO equivalent to this standard.
D5421 Specification for Contact Molded “Fiberglass”
1.6 This international standard was developed in accor-
(Glass-Fiber-Reinforced Thermosetting Resin) Flanges
dance with internationally recognized principles on standard-
F412 Terminology Relating to Plastic Piping Systems
ization established in the Decision on Principles for the
2.2 ANSI Standards:
Development of International Standards, Guides and Recom- 3
B16.1 Cast Iron Pipe Flanges and Flanged Fittings
mendations issued by the World Trade Organization Technical 3
B16.5 Pipe Flanges and Flanged Fittings
Barriers to Trade (TBT) Committee. 3
B18.22 Type “B” Narrow Washers
1 2
This specification is under the jurisdiction of ASTM Committee D20 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Plastics and is the direct responsibility of Subcommittee D20.23 on Reinforced contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Plastic Piping Systems and Chemical Equipment. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Nov. 1, 2018. Published November 2018. Originally the ASTM website.
3
approved in 1996. Last previous edition approved in 2011 as D6041 – 11. DOI: Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/D6041-18. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D6041 − 18
tions to be overstated in an attempt to achieve a higher safety margin.
2.3 National Sanitation Foundation Standard:
NSF Standard 61 Drinking Water System Components—
4.1.1.1 The use of one resin in the corr
...

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: D6041 − 11 D6041 − 18 An American National Standard
Standard Specification for
Contact-Molded “Fiberglass” (Glass-Fiber-Reinforced
Thermosetting Resin) Corrosion Resistant Pipe and
1
Fittings
This standard is issued under the fixed designation D6041; 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 Scope*
1.1 This specification covers pipe and fittings fabricated by contact molding, for pressures to 150 psi and made of a
commercial-grade polyester resin. Included are requirements for materials, properties, design, construction, dimensions, tolerances,
workmanship, and appearance.
1.2 This specification does not cover resins other than polyester, reinforcing materials other than glass fibers or fabrication
methods other than contact molding.
NOTE 1—For the purposes of this specification, the term polyester resin will include both polyester and vinylester resins.
1.3 This specification does not cover the design of pipe and fittings intended for use with liquids heated above their flash points.
1.4 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are provided for
information purposes only.
1.5 The following precautionary caveat pertains only to Section 10, the test methods portion, of this specification: 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.
NOTE 2—There is no known ISO equivalent to this standard.
1.6 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:
C581 Practice for Determining Chemical Resistance of Thermosetting Resins Used in Glass-Fiber-Reinforced Structures
Intended for Liquid Service
C582 Specification for Contact-Molded Reinforced Thermosetting Plastic (RTP) Laminates for Corrosion-Resistant Equipment
D618 Practice for Conditioning Plastics for Testing
D638 Test Method for Tensile Properties of Plastics
D648 Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position
D883 Terminology Relating to Plastics
D1599 Test Method for Resistance to Short-Time Hydraulic Pressure of Plastic Pipe, Tubing, and Fittings
D1600 Terminology for Abbreviated Terms Relating to Plastics
D2583 Test Method for Indentation Hardness of Rigid Plastics by Means of a Barcol Impressor
D2584 Test Method for Ignition Loss of Cured Reinforced Resins
D3567 Practice for Determining Dimensions of “Fiberglass” (Glass-Fiber-Reinforced Thermosetting Resin) Pipe and Fittings
1
This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.23 on Reinforced Plastic Piping
Systems and Chemical Equipment.
Current edition approved Dec. 1, 2011Nov. 1, 2018. Published December 2011November 2018. Originally approved in 1996. Last previous edition approved in 20022011
as D6041 – 97D6041 – 11.(2002), which was withdrawn in January 2011 and reinstated in December 2011. DOI: 10.1520/D6041-11. DOI: 10.1520/D6041-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6041 − 18
D3681 Test Method for Chemical Resistance of “Fiberglass” (Glass–Fiber–Reinforced Thermosetting-Resin) Pipe in a Deflected
Condition
D5421 Specification for Contact Molded “Fiberglass” (Glass-Fiber-Reinforced Thermosetting Resin) Flanges
F412 Terminology Relating to Plastic Piping Systems
2.2 ANSI Standards:
3
B16.1 Cast Iro
...