Standard Historical Last Updated: Jul 04, 2022 Track Document
ASTM D4640-86(2017)

Standard Test Method for Determining Stroke Cure Time of Thermosetting Phenol-Formaldehyde Resins

Standard Test Method for Determining Stroke Cure Time of Thermosetting Phenol-Formaldehyde Resins D4640-86R17 ASTM|D4640-86R17|en-US Standard Test Method for Determining Stroke Cure Time of Thermosetting Phenol-Formaldehyde Resins Standard new BOS Vol. 06.03 Committee D01
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Significance and Use

4.1 This method is significant as a process control for polymerization time.

4.2 When the cure times are determined at several temperatures and plotted as time versus temperature, different resins can be compared for curing characteristics.

Scope

1.1 This test method covers the determination of the cure rate at any specified temperature for a thermosetting phenol-formaldehyde resin. The time at that temperature required to make a fluid mixture change into a hard immovable mass indicates speed of cure.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that 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 and health 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.

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Details
Book of Standards Volume: 06.03
Developed by Subcommittee: D01.33
Pages: 2
DOI: 10.1520/D4640-86R17
ICS Code: 83.080.10