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ASTM D7992/D7992M-23

(Practice)

Standard Practice for Elevated Temperature and Moisture Conditioning of Pultruded Fiber Reinforced Polymer (FRP) Composites Used in Structural Designs

Standard Practice for Elevated Temperature and Moisture Conditioning of Pultruded Fiber Reinforced Polymer (FRP) Composites Used in Structural Designs

SIGNIFICANCE AND USE
4.1 The elevated temperature and moisture conditioning procedures prescribed in this practice are designed to provide a standard procedure to be used to evaluate and compare the effect of elevated temperature and moisture conditioning under controlled laboratory conditions on pultruded FRP composites to be used in structural design applications. The conditioning procedures prescribed in this practice are designed to obtain reproducible results to compare and evaluate these materials but are not intended to produce equilibrium conditions or actual service conditions for these materials.
SCOPE
1.1 In general, it is feasible that the mechanical properties of FRP composites will be affected by environmental conditions such as exposure to moisture at elevated temperatures. In order to make reliable comparisons between different materials under elevated temperature and moisture environmental conditions, it is necessary to standardize the elevated temperature and moisture conditions to which specimens of these materials are subjected prior to and during testing. This practice defines procedures for elevated temperature and moisture conditioning of pultruded FRP composites intended for use in structural design applications. The conditioning medium representing elevated temperature and moisture exposure described in this standard practice is distilled water maintained at 37.8 ± 1.5°C [100 ± 3°F] for 1000 hours.  
1.2 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems has the potential to result in nonconformance with the 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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
Published
Publication Date
14-Dec-2023
ICS
83.120 - Reinforced plastics
Technical Committee
D20 - Plastics
Drafting Committee
D20.18 - Reinforced Thermosetting Plastics
Current Stage
Ref Project

Relations

Replaces
ASTM D7992/D7992M-15 - Standard Practice for Elevated Temperature and Moisture Conditioning of Pultruded Fiber Reinforced Polymer (FRP) Composites Used in Structural Designs
Effective Date
15-Dec-2023

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ASTM D7992/D7992M-23 - Standard Practice for Elevated Temperature and Moisture Conditioning of Pultruded Fiber Reinforced Polymer (FRP) Composites Used in Structural DesignsASTM D7992/D7992M-23 - Standard Practice for Elevated Temperature and Moisture Conditioning of Pultruded Fiber Reinforced Polymer (FRP) Composites Used in Structural Designs
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REDLINE ASTM D7992/D7992M-23 - Standard Practice for Elevated Temperature and Moisture Conditioning of Pultruded Fiber Reinforced Polymer (FRP) Composites Used in Structural DesignsREDLINE ASTM D7992/D7992M-23 - Standard Practice for Elevated Temperature and Moisture Conditioning of Pultruded Fiber Reinforced Polymer (FRP) Composites Used in Structural Designs
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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: D7992/D7992M − 23
Standard Practice for
Elevated Temperature and Moisture Conditioning of
Pultruded Fiber Reinforced Polymer (FRP) Composites Used
1
in Structural Designs
This standard is issued under the fixed designation D7992/D7992M; 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 In general, it is feasible that the mechanical properties of
D618 Practice for Conditioning Plastics for Testing
FRP composites will be affected by environmental conditions
D883 Terminology Relating to Plastics
such as exposure to moisture at elevated temperatures. In order
D3918 Terminology Relating to Reinforced Plastic Pul-
to make reliable comparisons between different materials under
3
truded Products (Withdrawn 2020)
elevated temperature and moisture environmental conditions, it
D6641/D6641M Test Method for Compressive Properties of
is necessary to standardize the elevated temperature and
Polymer Matrix Composite Materials Using a Combined
moisture conditions to which specimens of these materials are
Loading Compression (CLC) Test Fixture
subjected prior to and during testing. This practice defines
D7290 Practice for Evaluating Material Property Character-
procedures for elevated temperature and moisture conditioning
istic Values for Polymeric Composites for Civil Engineer-
of pultruded FRP composites intended for use in structural
ing Structural Applications
design applications. The conditioning medium representing
D7745 Practice for Testing Pultruded Composites
elevated temperature and moisture exposure described in this
standard practice is distilled water maintained at 37.8 6 1.5°C
3. Terminology
[100 6 3°F] for 1000 hours.
3.1 Definitions:
1.2 Units—The values stated in either SI units or inch- 3.1.1 standard laboratory temperature, n—a temperature of
pound units are to be regarded separately as standard. The
23 6 2°C [73.4 6 3.6°F]
values stated in each system are not necessarily exact equiva-
3.1.2 standard laboratory atmosphere, n—an atmosphere
lents; therefore, each system shall be used independently of the
having a temperature of 23 6 2°C [73.4 6 3.6°F] and a rela-
other. Combining values from the two systems has the potential
tive humidity of 50 6 10 %.
to result in nonconformance with the standard.
3.1.3 elevated temperature and moisture resistance, n—the
1.3 This standard does not purport to address all of the ability of a thermoset pultruded composite to withstand el-
safety concerns, if any, associated with its use. It is the evated temperature and moisture exposure at 37.8 6 1.5°C
responsibility of the user of this standard to establish appro- [100 6 3°F] for 1000 hours. This ability will be quantified in
terms of the % retention of the mechanical property of interest
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. as compared to samples held at standard laboratory atmo-
sphere.
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3.2 Terminology relating to pultruded composites is found
ization established in the Decision on Principles for the
in Terminology D3918.
Development of International Standards, Guides and Recom-
4. Significance and Use
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
4.1 The elevated temperature and moisture conditioning
procedures prescribed in this practice are designed to provide
1 2
This test method is under the jurisdiction of ASTM Committee D20 on Plastics For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and is the direct responsibility of Subcommittee D20.18 on Reinforced Thermoset- contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ting Plastics. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Dec. 15, 2023. Published January 2024. Originally the ASTM website.
3
approved in 2015. Last previous edition approved in 2015 as D7992/ The last approved version of this historical standard is referenced on
D7992M – 15.DOI: 10.1520/D7992_D7992M-23. www.astm.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

-------------------
...

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: D7992/D7992M − 15 D7992/D7992M − 23
Standard Practice for
Elevated Temperature and Moisture Conditioning of
Pultruded Fiber Reinforced Polymer (FRP) Composites Used
1
in Structural Designs
This standard is issued under the fixed designation D7992/D7992M; 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 In general, it is feasible that the mechanical properties of FRP composites will be affected by environmental conditions such
as exposure to moisture at elevated temperatures. In order to make reliable comparisons between different materials under elevated
temperature and moisture environmental conditions, it is necessary to standardize the elevated temperature and moisture conditions
to which specimens of these materials are subjected prior to and during testing. This practice defines procedures for elevated
temperature and moisture conditioning of pultruded FRP composites intended for use in structural design applications. The
conditioning medium representing elevated temperature and moisture exposure described in this standard practice is distilled water
maintained at 37.8 6 1.5°C (100 6 3°F)[100 6 3°F] for 1000 hours.
1.2 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in
each system may not beare not necessarily exact equivalents; therefore, each system shall be used independently of the other.
Combining values from the two systems may has the potential to result in nonconformance with the 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 healthsafety, health, and environmental practices and determine
the applicability of regulatory limitations prior to use.
1.4 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:
D618 Practice for Conditioning Plastics for Testing
D883 Terminology Relating to Plastics
3
D3918 Terminology Relating to Reinforced Plastic Pultruded Products (Withdrawn 2020)
D6641/D6641M Test Method for Compressive Properties of Polymer Matrix Composite Materials Using a Combined Loading
Compression (CLC) Test Fixture
1
This test method is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.18 on Reinforced Thermosetting
Plastics.
Current edition approved Sept. 1, 2015Dec. 15, 2023. Published October 2015January 2024. Originally approved in 2015. Last previous edition approved in 2015 as
D7992/D7992M – 15.DOI: 10.1520/D7992_D7992M-15.10.1520/D7992_D7992M-23.
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
The last approved version of this historical standard is referenced on www.astm.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

---------------------- Page: 1 ----------------------
D7992/D7992M − 23
D7290 Practice for Evaluating Material Property Characteristic Values for Polymeric Composites for Civil Engineering
Structural Applications
D7745 Practice for Testing Pultruded Composites
3. Terminology
3.1 Definitions:
3.1.1 standard laboratory temperature, n—a temperature of 23 6 2°C (73.4 6 3.6°F)[73.4 6 3.6°F]
3.1.2 standard laboratory atmosphere, n—an atmosphere having a temperature of 23 6 2°C (73.4 6 3.6°F)[73.4 6 3.6°F] and a
relative humidity of 50 6 10 %.
3.1.3 elevated temperature and moisture resistance, n—the ability of a thermoset pultruded composite to withstand elevated
temperature and moisture exposure at 37.8 6 1.5°C (100 6 3°F)[100 6 3°F] for 1000 hours. This ability will be quantified in
terms of the % retention of the mechanical pro
...

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ASTM D7792/D7792M-23(Practice)
Standard Practice for Freeze/Thaw Conditioning of Pultruded Fiber Reinforced Polymer (FRP) Composites Used in Structural Designs

SIGNIFICANCE AND USE
4.1 The freeze/thaw conditioning procedures prescribed in this practice are designed to provide a standard procedure to be used to evaluate and compare the effect of 100 freeze/thaw cycles under controlled laboratory conditions on pultruded FRP composites to be used in structural design applications. The conditioning procedures prescribed in this practice are designed to obtain reproducible results to compare and evaluate these materials but are not intended to produce equilibrium conditions or actual service conditions for these materials.
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1.1 In general, it is feasible that the mechanical properties of FRP composites will be affected by environmental conditions such as freeze/thaw cycling. In order to make reliable comparisons between different materials under freeze/thaw environmental conditions, it is necessary to standardize the freeze/thaw conditions to which specimens of these materials are subjected prior to and during testing. This practice defines procedures for freeze/thaw conditioning of pultruded FRP composites intended for use in structural design applications.  
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SIGNIFICANCE AND USE
5.1 Determination of the flexural modulus, beam bending strength and full assembly strength, by this test method is especially useful for product validation, design and specification purposes.  
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1.1 These test methods cover the determination of the flexural modulus and bending strength of both the tangent and deadend Fiber Reinforced Polymer (FRP) composite crossarms loaded perpendicular to the plane of minor and major axes. One method covers testing of assembled tangent crossarms including the tangent bracket and relative hardware. The other method covers testing of assembled deadend crossarms with a deadend bracket and relative phase loading hardware. The failure modes and associated stresses can be used for predicting the phase load capacities of pultruded crossarms specific to certain conductor loading scenarios exerted by conductors.  
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1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
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ABSTRACT
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SCOPE
1.1 This test method covers the determination of the diffuse light transmission factor of translucent reinforced plastics building panels.  
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1.2 The values given in SI units are to be regarded as standard. The values stated in parentheses are for information only.
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ASTM D3935-21(Specification)
Standard Classification System and Basis for Specification for Polycarbonate (PC) Unfilled and Reinforced Material

ABSTRACT
This specification covers unfilled and reinforced polycarbonate and polycarbonate copolymer materials suitable for injection molding, blow molding, and extrusion. Some of these compositions may also find use for compression molding or application from solution. Unfilled polycarbonate materials are classified into groups according to their composition. The groups are Group 01, Group 02, Group 03, Group 04, Group 05, and Group 06. These groups are subdivided into classes which are Class 0, Class 1, Class 2, Class 3, and Class 4 and these classes can be further be subdivided into grades which are Grade 1, Grade 2, Grade 3, Grade 4, Grade 5, Grade 6, Grade 7 and Grade 0. Different tests shall be conducted in order to determine the following properties of polymer materials: Izod impact strength, flexural modulus, tensile strength, and deflection temperature.
SCOPE
1.1 This classification system covers unfilled and reinforced polycarbonate and polycarbonate copolymer materials suitable for injection molding, blow molding, and extrusion. Some of these compositions may also find use for compression molding or application from solution. This classification system allows for the use of recycled materials provided that all specification requirements are met.  
1.2 The properties in this classification system are those required for identifying the compositions covered. Other requirements necessary for identifying particular characteristics important to specific applications are normally specified by using the suffixes in accordance with Section 5.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 This classification system and subsequent line callout (specification) are intended to provide a means of calling out plastic materials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selection should be made by those having expertise in the plastic field only after consideration of the design and the performance required of the part, the environment to which it will be exposed, the fabrication process to be employed, the costs involved, and the inherent properties of the material other than those covered in this standard.
Note 1: This classification system and ISO 21305-1 and ISO 21305-2 address the same subject matter, but differ in technical content.  
1.5 The following precautionary caveat pertains only to the test methods portion, Section 12, of this classification system. 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.  
1.6 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.

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ASTM
ASTM D4475-21(Test Method)
Standard Test Method for Apparent Horizontal Shear Strength of Pultruded Reinforced Plastic Rods By the Short-Beam Method

SIGNIFICANCE AND USE
5.1 Apparent shear strength determined by this test method is useful for quality control and specification purposes. It is also applicable to research and development programs concerned with interlaminar-shear strength. The apparent shear strength obtained by this test method is not intended for design purposes, but allowed to be utilized for comparative testing of composite materials, if all failures are in horizontal shear.  
5.2 It is recommended that control samples be fabricated with each research test series and that care be used to compare each set of controls with corresponding test series run at different times.
SCOPE
1.1 This test method covers the determination of the apparent horizontal shear strength of fiber reinforced plastic rods. The specimen is a short beam in the form of lengths of pultruded rods. This test method is applicable to all types of parallel-fiber-reinforced plastic rod samples.  
1.2 This test method is primarily used for quality control and specification purposes (see 5.1).  
1.3 The values stated in SI units are to be regarded as 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.
Note 1: There is no known ISO equivalent to this standard.  
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.

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ASTM
ASTM D3841-21(Specification)
Standard Specification for Glass-Fiber-Reinforced Polyester Plastic Panels

ABSTRACT
This specification covers glass-fiber reinforced polyester plastic panels intended for use in construction. Light transmitting panels covered by this specification are divided into two types, based on relative response to a laboratory flammability test: Type CC1 for limited flammability and Type CC2 for general purpose. These types may be further subdivided by grades based on relative response to weathering tests: Grade 1 for weather resistance and Grade 2 for general purpose. The polyester resin used in the panels shall be a thermosetting styrenated and acrylated polyester resin composed of polymeric esters in which the recurring ester groups are an integral part of the main polymer chain. The resin shall be reinforced with glass fibers. The polyester resin may contain additives for various purposes. The materials shall be tested for water absorption, tensile strength, linear thermal expansion, and flexural strength.
SCOPE
1.1 This specification covers the classification, materials of construction, workmanship, minimum physical requirements, and methods of testing glass-fiber reinforced polyester plastic panels intended for use in construction. Panels for specialized or unique applications have the potential to require values significantly above or below those stated in this specification. Recommended practices for certain specific applications are included as Appendix X1. This specification is not intended to restrict or limit technological changes affecting performance when those changes are agreed upon between the purchaser and the seller.  
1.2 Supplementary information on chemical resistance, resistance to heat, and installation practices are provided in Appendix X1.  
1.3 The classification of these plastic panels into types based on relative response to a laboratory test shall not be considered a fire hazard classification.  
1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.  
1.5 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in Tables and Figures) shall not be considered as requirements of this standard.  
1.6 Fire properties are determined by using laboratory flammability tests (Test Methods D635, D1929, and E84).  
1.6.1 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products or assemblies under actual fire conditions.  
1.6.2 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.  
1.7 The following precautionary caveat pertains only to the test method portion, Section 8 of this specification. This specification 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 specification to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.  
Note 1: There is no known ISO equivalent to this standard.  
1.8 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.

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