Monday 11 July 2022

The goals for fire retardant are universal and can be simply stated in the following items:

-1 Prevent th fire or retard its growth and spread i.e. the flash over:

  • Control fire properties of combustible items,
  • Provide for suppression of the fire.

Under the conditions of fire the use of the flame retardant gives a significant increase in the escape time available.

-2 Protect occupant from the fire effects:

  • Provide timely notification of the emergency,
  • Protect escape routes,
  • Provide areas of refuge where necessary and possible.

The use of fire retardant reduces the flame spread and so the rate at witch the smoke develops. Less smoke production gives an increase in the escape time available.

-3  Minimize the impact of fire: 

  • Provide separation by tenant, occupancy, or maximum area.
  • Maintain the structural integrity of property,
  • Provide for continued operation of shared properties.

-4  Support fire service operations 

  • Provide for identification of fire location,
  • Provide reliable communication with areas of refuge,
  • Provide for fire department access, control, communication, and selection.

To prevent the fire or retard its growth and spread, material and product performance testing is used to set limits on the fire properties of items which represent the major fuels in the system.

The majority of fire safety requirements consist of material fire performance test criteria to retard its growth and spread. Based on test methods that evaluate fire properties of individual materials, the test methods are generally based on the measurement of the flame-spread speed


Brief overview of the fire retardant and fire resistant characteristics.






What is assessed

Test scenario

Key parameters


To save lives


Delaying the fire growth

Decreasing the fire kinetic

At the early stage of fire delaying the flash over phenomenon.

The reaction to fire in term of contribution to fire:





-To submit a sample to a heat flux

-To ignite the gaseous decomposition products

-To follow the fire development


Heat release


Flame spread

Smoke opacity

Smoke Toxicity


Limiting the physic progression of fire from one to another area

Using fireproof barriers to compartment the fire areas

During fire from the early to the post flashover periods

The resistance to fire in term of maintaining certain functionalities:

-Smoke and heat Insulation


-Load bearing


-To submit the sample to an increasing heat flux

-To follow the functionality evolution during the exposure time

Time failure of functionality studied:

-Smoke Insulation

-Heat Insulation


-Load bearing


FR Fire retardant, FRT Fire resistant