References
1. J. Troitzsch, International Plastics Flammability Handbook: Principles-Regulations-Testing
and Approval (Hanser, 1983)
2. P. Patel, T.R. Hull, C. Moffatt, PEEK polymer flammability and the inadequacy of the UL-94
classification. Fire Mater. 36, 185–201 (2012)
Table 3.1 Criteria and classification of materials rating in UL-94 V testing
Sample classified based on following criteria
V-0 (s)
V-1 (s)
V-2 (s)
After flame time for each individual specimen t 1 or t 2
10
30
30
Total after flame for any set (t 1 + t 2 for 5 specimens)
50
250
250
After flame/glow time for each specimen after second
application (t 1 + t 3 )
30
60
60
After flame glow of any specimen up to clamp
No
No
No
Cotton indicator ignited by flaming drips
No
No
Yes
14
3 Flame-Retardancy Testing
1. J. Troitzsch, International Plastics Flammability Handbook: Principles-Regulations-Testing
and Approval (Hanser, 1983)
2. P. Patel, T.R. Hull, C. Moffatt, PEEK polymer flammability and the inadequacy of the UL-94
classification. Fire Mater. 36, 185–201 (2012)
Table 3.1 Criteria and classification of materials rating in UL-94 V testing
Sample classified based on following criteria
V-0 (s)
V-1 (s)
V-2 (s)
After flame time for each individual specimen t 1 or t 2
10
30
30
Total after flame for any set (t 1 + t 2 for 5 specimens)
50
250
250
After flame/glow time for each specimen after second
application (t 1 + t 3 )
30
60
60
After flame glow of any specimen up to clamp
No
No
No
Cotton indicator ignited by flaming drips
No
No
Yes
14
3 Flame-Retardancy Testing