Fire-Fighting Foam Classification Guide



CLASSIFICATION1

Type of Fire2

Foam Expansion3

Hydrocarbons

Polar liquids

Low

Medium

High

S

1

0

N

Y

Y

AFFF

3

0

Y

Y

N

AR-AFFF

3

3

Y

Y

N

P

1

0

Y

N

N

FP

2

0

Y

Y

N

FFFP

3

0

Y

Y

N

AR-FP

2

3

Y

Y

N

AR-FFFP

3

3

Y

Y

N

  1. S-Synthetic, AFFF-Aqueous film-forming foam, AR- Alcohol-resistant, P-Protein, FP- Fluoro-protein, FFFP- Film-forming fluoro-protein, AR-FFFP- Alcohol-resistant film-forming fluoro-protein
  2. Efficiency rating: 0-No efficiency, 1-Low efficiency, 2-Good efficiency, 3-Excellent efficiency
  3. Expansion level: Low-Expansion ratio between 2 to 1  and 20 to 1, Medium- Expansion ratio between 20 to 1 and 200 to 1, High- Expansion ratio more than 200 to 1.
For more information, contact specialty chemicals customer support.