ASTM-D4640 › Historical Revision Information
Standard Test Method for Determining Stroke Cure Time of Thermosetting Phenol-Formaldehyde Resins
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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 This standard does not purport to address all of the safety problems 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.
Significance and Use
This method is significant as a process control for polymerization time.
When the cure times are determined at several temperatures and plotted as time versus temperature, different resins can be compared for curing characteristics.
Keywords
phenol-formaldehyde resins; stroke cure time; ICS Number Code 83.080.10 (Thermosetting materials)
To find similar documents by ASTM Volume:
To find similar documents by classification:
83.080.10 (Thermosetting materials Including ebonite Silicones, see 71.100.55)
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Document Number
ASTM-D4640-86(2001)
Revision Level
1986 R01 EDITION
Status
Superseded
Publication Date
Nov. 28, 1986
Document Type
Test Method
Page Count
2 pages
Committee Number
D01.33