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DuPont Refrigerants


Flammability Table

 

LFLa
vol%

UFLa
vol%

Delta
vol%

MIE
mJ

BVc
cm/s

Propane

2.2

10.0

7.8

0.25

46

R-152a

3.9

16.9

13.0

0.38

23

R-32

14.4

29.3

14.9

30-
100b

6.7

Ammonia

15

28

13

100-
300b

7.2

HFO-1234yf

6.5

12.3

5.8

5,000–
10,000b

1.5


a. LFL, UFL ASTME681-04, 21C
b. MIE - ASTM E582
c. BV - ISO 817 Draft AIST


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