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ASTM F 3203 : 2016

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Determination of Gel Content of Crosslinked Polyethylene (PEX) Pipes and Tubing
Available format(s)

Hardcopy , PDF

Superseded date

09-19-2018

Language(s)

English

Published date

08-01-2016

CONTAINED IN VOL. 08.04, 2018 Pertains to PEX pipe and tubing of all densities, including those containing fillers, and provides correction for the inert fillers present in some of those compounds.

1.1The gel content of pipe and tubing produced from crosslinked polyethylene plastics as described in Specification F876 and other pipe or tubing standards is determined by extracting with solvents such as xylenes. A test method for quantitative determination of gel content is described herein. The method is applicable to PEX pipe and tubing of all densities, including those containing fillers, and provides correction for the inert fillers present in some of those compounds.

1.2Continuous extraction (see definition in Section 3) is used in this method to test the gel content of crosslinked polyethylene specimens. Continuous extraction when used for testing gel content has the advantages of decreased the cost of testing, increased accuracy and consistency of results, and decreased test time. This is because extraction with a pure solvent is more efficient than extraction with a partially saturated solvent.

1.3While extraction tests may be made on articles of any shape, this test method is applicable for determining the gel content of crosslinked polyethylene pipes and tubing.

1.4This test method makes use of xylenes or alternative solvents which have lower toxicity than xylenes. The alternative solvents are also potentially beneficial from an economic and environmental viewpoint. Xylenes are used for referee tests.

1.5The values stated in SI units are to be regarded as standard. The inch-pound units in brackets are for information only

1.6This 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.

Committee
F 17
DocumentType
Test Method
Pages
9
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

ASTM F 876 : 2019 : REV A Standard Specification for Crosslinked Polyethylene (PEX) Tubing

ASTM F 876 : 2017 : REDLINE SPECIFICATION FOR CROSSLINKED POLYETHYLENE (PEX) TUBING
ASTM D 7567 : 2009 Standard Test Method for Determining Gel Content in Crosslinked Ethylene Plastics Using Pressurized Liquid Extraction (Withdrawn 2015)
ASTM D 1603 : 2014 : REDLINE Standard Test Method for Carbon Black Content in Olefin Plastics
ASTM D 2765 : 2016 : REDLINE Standard Test Methods for Determination of Gel Content and Swell Ratio of Crosslinked Ethylene Plastics
ISO 10147:2011 Pipes and fittings made of crosslinked polyethylene (PE-X) Estimation of the degree of crosslinking by determination of the gel content

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