ASTM F1057-21

Standard Practice for Estimating the Quality of Extruded Poly (Vinyl Chloride) (PVC) Pipe by the Heat Reversion Technique

SIGNIFICANCE AND USE
2.1 This practice is applicable to distinguish between properly and improperly extruded PVC plastic pipe. It can be used to:  
2.1.1 Reveal incomplete exsiccation of compound before or during extrusion (Note 1),  
2.1.2 Determine the presence of stress in the pipe wall produced by the extrusion process (Note 2),  
2.1.3 Determine whether unfused areas are present, and  
2.1.4 Reveal contamination.  
Note 1: Residual moisture in the compound vaporizes at extrusion temperatures and is normally evacuated as it forms vapor. Pockets of moisture trapped in the pipe wall result from incomplete exsiccation of the compound, and may reduce the physical properties of the pipe.
Note 2: Minor residual stress in the pipe will not impair field performance and handleability. High-residual stress has no proven effect on performance, but may impair handleability during installation.
SCOPE
1.1 This practice covers a procedure for estimating the quality of extruded poly (vinyl chloride) (PVC) plastic pipes by observing the reaction of pipe specimens after exposure to hot air in the oven at 180 °C ± 5 °C (356 °F ± 9 °F) for 30 minutes minimum time duration.  
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units 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, 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: 31-Oct-2021
• ICS: 23.040.20 - Plastics pipes
• Technical Committee: F17 - Plastic Piping Systems
• Drafting Committee: F17.40 - Test Methods

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: F1057 − 21
Standard Practice for
Estimating the Quality of Extruded Poly (Vinyl Chloride)
1
(PVC) Pipe by the Heat Reversion Technique
This standard is issued under the fixed designation F1057; 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.
NOTE 2—Minor residual stress in the pipe will not impair field
1. Scope*
performance and handleability. High-residual stress has no proven effect
1.1 This practice covers a procedure for estimating the
on performance, but may impair handleability during installation.
qualityofextrudedpoly(vinylchloride)(PVC)plasticpipesby
observing the reaction of pipe specimens after exposure to hot
3. Apparatus
air in the oven at 180 °C 6 5 °C (356 °F 6 9 °F) for 30
3.1 Air Circulating Oven, thermostatically controlled, ca-
minutes minimum time duration.
pable of operating at 180 °C 6 5 °C (356 °F 6 9 °F) and
1.2 The values stated in SI units are to be regarded as
capable of meeting the recovery requirement of 4.3.
standard. The values given in parentheses after SI units are
Additionally, the oven must have heat generation (power)
provided for information only and are not considered standard.
capacity such that the recovery is achieved while at a constant
oven set point. The air temperature within the oven (that is, the
1.3 This standard does not purport to address all of the
test temperature) is to be monitored within 3 in. from the outer
safety concerns, if any, associated with its use. It is the
edge of the test specimen; make assurances that the tempera-
responsibility of the user of this standard to establish appro-
ture measuring probe does not contact the test specimen.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
NOTE 3—The oven should be vented to the outside of the building.
1.4 This international standard was developed in accor-
NOTE 4—Monitoring of the test temperature within the oven may
dance with internationally recognized principles on standard-
require a secondary temperature monitoring device in addition to the
temperature monitoring device within the oven control system.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
4. Procedure
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
4.1 Prepare specimens of pipe 150 mm (6 in.) long or longer
with ends cut square so that they stand perpendicular on end
2. Significance and Use
when placed in the oven.
2.1 This practice is applicable to distinguish between prop- 4.1.1 Cut staves from pipes whose size prevents insertion of
full round specimens in the oven. Prepare large-diameter pipe
erly and improperly extruded PVC plastic pipe. It can be used
to: staves so that their lengths parallel to the pipe axis are 150 mm
(6 in.) or longer.
2.1.1 Reveal incomplete exsiccation of compound before or
during extrusion (Note 1),
4.2 Examine the specimens and note any unusual features
2.1.2 Determine the presence of stress in the pipe wall
such as discoloration, inclusions, or pinholes in the cut edge.
produced by the extrusion process (Note 2),
4.3 Place the specimens of whole pipe in the preheated oven
2.1.3 Determine whether unfused areas are present, and
so that each specimen stands on end with sufficient separation
2.1.4 Reveal contamination.
between them so that hot air can flow freely between the pipes.
NOTE 1—Residual moisture in the compound vaporizes at extrusion
Place specimens of pipe staves on the floor of the preheated
temperatures and is normally evacuated as it forms vapor. Pockets of
ovensothattheyrestontheirlongitudinaledgesandsothathot
moisture trapped in the pipe wall result from incomplete exsiccation of the
air can flow freely around them. Record the time when the air
compound, and may reduce the physical properties of the pipe.
in the oven directly adjacent to the test specimen recovers to
180 °C (356 °F). Recovery must occur within 15 minutes or
1
less.
This practice is under the jurisdiction of ASTM Committee F17 on Plastic
Piping Systems and is the direct responsibility of Subcommittee F17.40 on Test
4.3.1 Pipe specimens with wall thickness less than 25.4 mm
Methods.
(1.0 in.):After an additional 30 minutes of exposure within the
Current edition approved Nov. 1, 2021. Published November 2021. Originally
test temperature tolerance of 180 °C 6 5 °C (356
...

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: F1057 − 19 F1057 − 21
Standard Practice for
Estimating the Quality of Extruded Poly (Vinyl Chloride)
1
(PVC) Pipe by the Heat Reversion Technique
This standard is issued under the fixed designation F1057; 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 a procedure for estimating the quality of extruded poly (vinyl chloride) (PVC) plastic pipes by observing
the reaction of pipe specimens after exposure to hot air in the oven at 180180 °C 6 5 °C (356(356 °F 6 9 °F) for 30 minutes
minimum time duration.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units 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, 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. Significance and Use
2.1 This practice is applicable to distinguish between properly and improperly extruded PVC plastic pipe. It can be used to:
2.1.1 Reveal incomplete exsiccation of compound before or during extrusion (Note 1),
2.1.2 Determine the presence of stress in the pipe wall produced by the extrusion process (Note 2),
2.1.3 Determine whether unfused areas are present, and
2.1.4 Reveal contamination.
NOTE 1—Residual moisture in the compound vaporizes at extrusion temperatures and is normally evacuated as it forms vapor. Pockets of moisture trapped
in the pipe wall result from incomplete exsiccation of the compound, and may reduce the physical properties of the pipe.
NOTE 2—Minor residual stress in the pipe will not impair field performance and handleability. High-residual stress has no proven effect on performance,
but may impair handleability during installation.
1
This practice is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.40 on Test Methods.
Current edition approved Feb. 1, 2019Nov. 1, 2021. Published March 2019November 2021. Originally approved in 1987. Last previous edition approved in 20172019 as
F1057–17.–19. DOI: 10.1520/F1057-19.10.1520/F1057-21.
*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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F1057 − 21
3. Apparatus
3.1 Air Circulating Oven, thermostatically controlled, capable of operating at 180180 °C 6 5 °C (356(356 °F 6 9 °F) and capable
of meeting the recovery requirement of 4.3. Additionally, the oven must have heat generation (power) capacity such that the
recovery is achieved while at a constant oven set point. The air temperature within the oven (that is, the test temperature) is to be
monitored within 3 in. from the outer edge of the test specimen; make assurances that the temperature measuring probe does not
contact the test specimen.
NOTE 3—The oven should be vented to the outside of the building.
NOTE 4—Monitoring of the test temperature within the oven may require a secondary temperature monitoring device in addition to the temperature
monitoring device within the oven control system.
4. Procedure
4.1 Prepare specimens of pipe 150 mm (6 in.) long or longer with ends cut square so that they stand perpendicular on end when
placed in the oven.
4.1.1 Cut staves from pipes whose size prevents insertion of full round specimens in the oven. Prepare large-diameter pipe staves
so that their lengths parallel to the pipe axis are 150 mm (6 in.) or longer.
4.2 Examine the specimens and note any unusual features such as discoloration, inclusions, or pinholes in the cut edge.
4.3 Place the specimens of whole pipe in the preheated oven so that each specimen stands on end with sufficient separation
betwe
...