Testing
Fire Testing - Extruded uPVC
To determine the flammability of a plastics material when it is tested in accordance with the test procedure specified in Section 8 - “50W {20mm) Vertical Burning Test for Classifying Materials 94V-0, 94V-1 or 95V-2” of UL94 - ‘Test fo Flammability of Plastics Materials for Parts in Devices and Appliances’. Purpose of Test Five specimens were conditioned for at least 48 hours at a temperature of 23 ± 2°C and a relative humidity of 50 ± 5% prior to testing. Five specimens were conditioned in a circulating air oven for 168 hours at 70 °C and were then cooled in a desiccator, over anhydrous calcium chloride, for at least four hours at room temperature prior to testing. Conditions of Specimens
Specimens conditioned at a temperature of 23 ± 2°C and a relative humidity of SO ± S% Test Results
Specimen No.
A
B
C
D
E
1
Nil
Nil
Nil
No
No
2
Nil
Nil
Nil
No
No
3
Nil
2
Nil
No
No
4
Nil
2
Nil
No
No
5
Nil
1
Nil
No
No
Specimens conditioned at a temperature of 7O ± 1°C for 168 hours
Specimen No.
A
B
C
D
E
1
Nil
Nil
Nil
No
No
2
Nil
1
Nil
No
No
3
Nil
2
Nil
No
No
4
Nil
1
Nil
No
No
5
Nil
1
Nil
No
No
Conclusion When the test results are assessed using the test criteria specified in the Standard, the material, when tested at a nominal thickness of 1.6mm, is classified as “94V-0”.
Allied Tube & Conduit
130
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