THE TEST METHOD OF THE VICAT SOFTENING TEMPERATURE OF THERMOPLASTICS
|Publication Date:||19 June 2006|
This test method applies to determination of thermal properties at a specified condition for thermoplastics used for automobiles.
There are four methods depending on applied load and heating rate.
Method A/50: Load 9.81 N, heating rate 50°C/h
Method A/120: Load 9.81 N, heating rate 120°C/h
Method B/50: Load 49.5 N, heating rate 50°C/h
Method B/120: Load 49.05 N, heating rate 120°C/h
This standard shall not apply to materials having wide softening
temperature range, such as ethyl-cellulose, soft polyvinylchloride
This standard is used to determine the temperature at which thermoplastics are softened when being heated.