DCM Test (EN580) for PVC Pipe Fusion Degree

Picture of Patrick van Bezouw Patrick van Bezouw Jun 10, 2025 12:30:49 PM

Pipe Design and Testing Methods
DCM Test (EN580) for PVC Pipe Fusion Degree
DCM Test (EN580) for PVC Pipe Fusion Degree
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Dichloromethane (DCM) Test for Assessing PVC Pipe Fusion Degree

The DCM test (EN580) uses dichloromethane solvent to detect un-fused powder on the chamfered pipe surface. Loose powder indicates insufficient fusion or gelation.

Fusion Quality Indicator

The DCM test is more stringent than the ASTM acetone test, requiring a narrow processing window for optimal gelation without entrapped air, critical for pipe integrity.

 

FAQ Section

How does the DCM test indicate PVC fusion?

Presence of loose powder on the pipe surface shows low fusion or gelation.

 

Is the DCM test a strict measure of fusion?


Yes, it is stricter than the ASTM acetone test and requires tighter process control.