The ISO 9396:1997 standard specifies a method for determining the gel time of phenolic resins sol using automated equipment at specified temperatures. The test temperatures are 100 ° C, 130 ° C and 150 ° C. The standard applies to liquid sol and low melting point solid dissolving agents, but not to powder Resin with extremely short gel times. The standard provides an accurate Measuring method to evaluate the crosslinking properties of Resin under specific conditions, suitable for quality control and application studies of phenolic resins.
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