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ASTM D 2765 : 2016

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Methods for Determination of Gel Content and Swell Ratio of Crosslinked Ethylene Plastics
Available format(s)

Hardcopy , PDF

Superseded date

02-23-2024

Language(s)

English

Published date

09-12-2016

The gel content (insoluble fraction) produced in ethylene plastics by crosslinking is determined by extracting with solvents such as decahydronaphthalene or xylenes

1.1The gel content (insoluble fraction) produced in ethylene plastics by crosslinking is determined by extracting with solvents such as decahydronaphthalene or xylenes. The methods described herein are applicable to crosslinked ethylene plastics of all densities, including those containing fillers, and all provide corrections for the inert fillers present in some of those compounds.

1.2Test Method A, which permits most complete extraction in least time, is to be used for referee tests, but two alternative nonreferee Test Methods B and C are also described. Test Method B differs from the referee test method only in sample preparation; that is, it requires use of shavings taken at selected points in cable insulation, for example, rather than the ground sample required by the referee test method. Because the shaved particles are larger, less total surface per sample is exposed to the extractant, so this test method ordinarily yields extraction values about 1 to 2 % lower than the referee method. Test Method C requires that a specimen in one piece be extracted in xylenes at a constant temperature of 110°C. At this temperature and with a one-piece specimen, even less extraction occurs (from 3 to 9 % less than the referee test method), this method permits swell ratio (a measure of the degree of crosslinking in the gel phase) be determined.

1.3Extraction tests are made on articles of any shape. They have been particularly useful for electrical insulations since specimens can be selected from those portions of the insulation most susceptible to insufficient crosslinking.

1.4The 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 non-conformance with the standard.

Note 1:This test method is equivalent to ISO 10147, Method B. It is not equivalent to ISO 10147 in any other measurement or section.

1.5This 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. Specific precautionary statements are given in Sections 6, 9, and 24.

Committee
D 20
DocumentType
Test Method
Pages
8
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM F 2818 : 2010 : R2014 : EDT 1 Standard Specification for Specification for Crosslinked Polyethylene (PEX) Material Gas Pressure Pipe and Tubing
ASTM F 2854 : 2010 : R2016 Standard Specification for Push-Fit Crosslinked Polyethylene (PEX) Mechanical Fittings for Crosslinked Polyethylene (PEX) Tubing
ASTM F 2214 : 2016 Standard Test Method for <emph type="bdit">In Situ</emph> Determination of Network Parameters of Crosslinked Ultra High Molecular Weight Polyethylene (UHMWPE)
ASTM F 2565 : 2013 Standard Guide for Extensively Irradiation-Crosslinked Ultra-High Molecular Weight Polyethylene Fabricated Forms for Surgical Implant Applications
ASTM D 2656 : 2013 Standard Specification for Crosslinked Polyethylene Insulation for Wire and Cable Rated 2001 to 35 000 V
ASTM D 2655 : 2019 Standard Specification for Crosslinked Polyethylene Insulation for Wire and Cable Rated 0 to 2000 V, 90°C Operation
ASTM F 2788/F2788M : 2019 Standard Specification for Metric and Inch-sized Crosslinked Polyethylene (PEX) Pipe
ASTM F 1281 : 2017 Standard Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX) Pressure Pipe
ASTM F 2968/F2968M : 2014 : REV A Standard Specification for Black Crosslinked Polyethylene (PEX) Pipe, Fittings and Joints For Gas Distribution Applications
ASTM F 1960 : 2018 : REV A Standard Specification for Cold Expansion Fittings with PEX Reinforcing Rings for Use with Cross-linked Polyethylene (PEX) and Polyethylene of Raised Temperature (PE-RT) Tubing
ASTM F 2905/F2905M : 2013 Standard Specification for Black Crosslinked Polyethylene (PEX) Line Pipe, Fittings and Joints For Oil and Gas Producing Applications
ASTM D 2647 : 2018 Standard Specification for Crosslinkable Ethylene Plastics
ASTM F 2759 : 2011 Standard Guide for Assessment of the Ultra High Molecular Weight Polyethylene (UHMWPE) Used in Orthopedic and Spinal Devices
ASTM D 3555 : 2007 : R2018 Standard Specification for Track-Resistant Black Crosslinked Polyethylene Insulation for Wire and Cable, 90 °C Operation
ASTM F 3203 : 2018 Standard Test Method for Determination of Gel Content of Crosslinked Polyethylene (PEX) Pipes and Tubing
ASTM F 1986 : 2001 : R2011 Standard Specification for Multilayer Pipe Type 2, Compression Fittings, and Compression Joints for Hot and Cold Drinking-Water Systems (Withdrawn 2020)
ASTM F 2805 : 2016 Standard Specification for Multilayer Thermoplastic And Flexible Steel Pipe And Connections
ASTM F 2929 : 2017 Standard Specification for Crosslinked Polyethylene (PEX) Tubing of 0.070 in. Wall and Fittings for Radiant Heating Systems up to 75 psig
ASTM F 876 : 2019 : REV A Standard Specification for Crosslinked Polyethylene (PEX) Tubing
ASTM F 3378/F3378M : 2022 Standard Specification for Crosslinkable Polyethylene (CX-PE) Pipe
ASTM F 2788/F2788M : 2021 Standard Specification for Metric and Inch-sized Crosslinked Polyethylene (PEX) Pipe
ASTM F 2818 : 2010 : R2023 Standard Specification for Specification for Crosslinked Polyethylene (PEX) Material Gas Pressure Pipe and Tubing
ASTM F 876 : 2024 Standard Specification for Crosslinked Polyethylene (PEX) Tubing
ASTM F 3203 : 2019 : R2023 Standard Test Method for Determination of Gel Content of Crosslinked Polyethylene (PEX) Pipes and Tubing
ASTM F 1281 : 2023 : REV A Standard Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX) Pressure Pipe
ASTM F 3597 : 2023 Standard Specification for MRS-Rated Metric- and Inch-sized Crosslinked Polyethylene (PEX) Pressure Pipe for Oil and Gas Producing Applications
ASTM F 2968/F2968M : 2021 Standard Specification for Crosslinked Polyethylene (PEX) Pipe for Gas Distribution Applications
ASTM F 1960 : 2023 : REV B Standard Specification for Cold Expansion Fittings with PEX Reinforcing Rings for Use with Cross-linked Polyethylene (PEX) and Polyethylene of Raised Temperature (PE-RT) Tubing
ASTM F 3253 : 2024 Standard Specification for Crosslinked Polyethylene (PEX) Tubing with Oxygen Barrier for Hot- and Cold-Water Hydronic Distribution Systems
ASTM F 2805 : 2016 : R2022 Standard Specification for Multilayer Thermoplastic And Flexible Steel Pipe And Connections
ASTM F 2759 : 2019 Standard Guide for Assessment of the Ultra-High Molecular Weight Polyethylene (UHMWPE) Used in Orthopedic and Spinal Devices
ASTM F 3534/F3534M : 2022 Standard Specification for MRS-Rated Metric- and Inch-Sized Crosslinked Polyethylene (PEX) Pressure Pipe for Gas Distribution Applications
ASTM F 2854 : 2021 Standard Specification for Push-Fit Crosslinked Polyethylene (PEX) Mechanical Fittings for Crosslinked Polyethylene (PEX) Tubing
ASTM F 2929 : 2017 : R2021 Standard Specification for Crosslinked Polyethylene (PEX) Tubing of 0.070 in. Wall and Fittings for Radiant Heating Systems up to 75 psig
ASTM F 2565 : 2021 Standard Guide for Extensively Irradiation-Crosslinked Ultra-High Molecular Weight Polyethylene Fabricated Forms for Surgical Implant Applications
ASTM F 2905/F2905M : 2022 Standard Specification for Crosslinked Polyethylene (PEX) Line Pipe For Oil and Gas Producing Applications
ASTM D 2656 : 2020 Standard Specification for Crosslinked Polyethylene Insulation for Wire and<brk/> Cable Rated 2001 to 35 000 V
ASTM D 2655 : 2023 Standard Specification for Crosslinked Polyethylene Insulation for Wire and Cable Rated 0 to 2000 V, 90 °C Operation
ASTM D 3555 : 2020 : EDT 1 Standard Specification for Track-Resistant Crosslinked Polyethylene Insulation for Wire and Cable, 90 °C Operation

ASTM D 883 : 2023 Standard Terminology Relating to Plastics
ASTM D 1998 : 2015 Standard Specification for Polyethylene Upright Storage Tanks
ASTM D 1998 : 2004 Standard Specification for Polyethylene Upright Storage Tanks
ASTM D 1603 : 2001 Standard Test Method for Carbon Black In Olefin Plastics
ASTM D 883 : 2022 Standard Terminology Relating to Plastics
ASTM D 883 : 2020 : REV B Standard Terminology Relating to Plastics
ASTM E 691 : 2020 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 691 : 2019 : EDT 1 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 691 : 2023 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM D 1603 : 2020 Standard Test Method for Carbon Black Content in Olefin Plastics
ASTM D 1603 : 2011 Standard Test Method for Carbon Black Content in Olefin Plastics
ASTM E 691 : 2022 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM D 1603 : 1994 Standard Test Method for Carbon Black In Olefin Plastics
ASTM E 691 : 2009 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM D 1603 : 2006 Standard Test Method for Carbon Black Content in Olefin Plastics
ASTM D 1998 : 2013 Standard Specification for Polyethylene Upright Storage Tanks
ASTM D 618 : 2013 Standard Practice for Conditioning Plastics for Testing
ASTM E 691 : 2021 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM D 3351 : 1993 Standard Test Method for Gel Count of Plastic Film (Withdrawn 2000)
ASTM D 297 : 2015 : R2019 Standard Test Methods for Rubber Products—Chemical Analysis
ASTM D 1998 : 2021 Standard Specification for Polyethylene Upright Storage Tanks
ASTM D 1998 : 1997 Standard Specification for Polyethylene Upright Storage Tanks
ASTM D 1603 : 2014 Standard Test Method for Carbon Black Content in Olefin Plastics
ASTM D 1603 : 2012 Standard Test Method for Carbon Black Content in Olefin Plastics
ASTM D 297 : 2021 Standard Test Methods for Rubber Products—Chemical Analysis
ASTM D 618 : 2021 Standard Practice for Conditioning Plastics for Testing
ASTM D 1998 : 2006 Standard Specification for Polyethylene Upright Storage Tanks

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