Film Free Shrink Tester is used to measure the degree of unrestrained linear thermal shrinkage at given temperatures of plastic film and sheeting in fluid medium. It complies with ASTM D2732.
Features
1.P.I.D. temperature control
2.High precision timer
3.Alarming function
4.Stable heating of fluid medium
5.Standard square metal clamp and free shrink holder
Test Process
● A temperature probe is located to fluid heating area.
● Mount the test specimen on the free shrink holder and place in the liquid bath when desired temperature is reached.
● When time is up, the alarm beeps.
● Remove test specimen and press Stop button to finish the test.
● Treat the specimen at ambient environment and measure the shrinkage
Calculation
Unrestrained linear shrinkage % =[(Lo-Lf)/Lo]x 100
Where: Lo = initial length 100mm)
Lf = length of side after shrinking
Technical Specification
Specimen Size : ≤160 mm x 160 mm
Temperature Range : Room temperature ~ 200°C
Accuracy: ±0.3°C
Power Supply: AC 220V 50Hz
Instrument Dimension: 370 mm(L)x440mm(W)x280mm (H)
Standards
ASTM D2732, ISO 11501 , GB T13519
