Fire ratings

Fire classes

Class A0 0 minutes

Class A60 60 minutes

Class H0 0 minutes

Class H60 60 minutes

Class H120 120 minutes

Difference between A- and H-fire ratings

A-fire rated doors and walls are tested with a normal ISO standard fire temperature curve. H-fire rated items are

tested with a Hydrocarbon fire curve. The exact difference is the temperature during the testing procedure, H-fire ratd

doors and walls are tested at higher temperatures in a longer time period.

The fire doors and fire walls shall maintain its function with respect to fire resistance and structural integrity when

exposed to a heat load characteristic for cellulosic (A-fire rating) or hydrocarbon (H-fire rating) fire.

Classification

Minimum time in minutes achieved

Integrity and load-bearing capacity Insulation performance

H120 120 120

H60 120 60

H0 120 0

A60 60 60

A0 60 0

Time - Temperature Curves: