name of the building     identification of the compartment       reference status
Acceptable risk calculation The reference situation is usually the actual status.
Schuine rand: Go to START
DATA Symbol Unit Results
Comments[1]
Activation factor[2]   DEFINE all relevant situations[3]  
Main activities a1 A2. Industry of non-combustible products ( EN Sprinkler class OH1) 0   0  
Process and room[4] a2   E2. Heat transfer through water, steam, or solids 0   0  
 heating systems a3   F2. Heat generator in the compartment under consideration. 0,1   0,1  
  a4   G2. Energy source: gas 0,1   0,1  
Electrical Installations.[5] a5   I1. In compliance with the rules and regularly checked 0   0  
Explosion risks.[6] a6   Z.  Not applicable 0   0  
Dust hazard a7   K0. Not applicable 0   0  
Secondary activities[7] a8   Secondary welding operations no   0  
  a9   Additional woodworking or use of plastics no   0  
Painting, spraying, glues, etc. a10     NONE 0   0  
Others a11   Special hazards (e.g. non-controllable smokers) no   0  
    INFO A Total value of activation factor a: a = 0,2
Evacuation time factor     
  b m value entered at: potential risk factor g     40
  l m value entered at: potential risk factor g     50
Number of occupants X[8] persons/m²   User defined total number of persons in the compartment m 100[9] 100  
Total of exit units x exit units[10] x is the number of exit units. The minimal width for an exit is 0.6 m (or 2 ft) unless law or practical conditions specify it otherwise.[11] 2 50[12] 2  
Exits to outside the building O   Number of exits (doors and stairs) that end in the open air 2 paths: 2  
DISTINCT exit paths K number Calculated number of distinct exit paths:. 2,4 gives: 2  
Mobility factor p[13] INFO A A. Mobile and independent persons ( adults, workers) 1   1  
      People with limited perception of the risk[14] no   0  
      There is a clear evacuation plan: yes   0  
      There is a danger for panic no   0  
    INFO A     p = 1
Equivalent length of vertical travelling path     based on H+ or H- value entered at potential risk factor z 1,25 0 0[15]
    seconds Calculated egress time (FRAME) 54,57[16]    
RSET   seconds As defined with EGRESS SIMULATION software [17] 0,00    
    Evacuation time factor  t = 0,08
Content factor [18]  
Relative value c1   b. the contents can difficulty be replaced 0,1   0,1  
Absolute value of property[19]     Actual value in million of CURRENCY (e.g. EUR, GBP, USD, SWF... ) 13,0 million  EUR[20]  
Building cost index     National building cost index at the time of the risk assessment 654      
Correction for inflation     National building cost index in 2000 503 in 2000: 10,00
Exchange rate   EUR 1 CURRENCY  =  x.yz  EURO 1,00 in EURO  
Reference value     Value in EURO , at given exchange rate and corrected for inflation      10,00
Content value factor c2         0,04
      Content factor  c = 0,14
Environment factor   
  Qi   value entered at potential risk factor q     100
  M   value entered at potential risk factor i     2,5
      Environment factor  r = 0,45
Dependency factor   
Added value /turnover ratio[21] d INFO A c. Manufacturing industry  : 0.25 to 0.45 0,35 -0,05[22] 0,3  
      Dependency factor  d = 0,3
Acceptable Risks  
      Acceptable risk values for :        
Activation factor a 0,20  property (building and content)  = 1.6 - a - t - c A 1,19 Date of this analysis
Evacuation time factor  t 0,08  occupants (people) = 1.6 - a - t - r A1 0,87  
Content factor  c 0,14  activities = 1.6 - a - c - d A2 0,96 date(s) of the analysis
Environment factor  r 0,45 WARNING :If the value of A or A1 or A2 is lower than 0.2 or even negative,  
Dependency factor  d 0,30 an unacceptable risk situation exists ! CHANGE first a, t, c, r or d        
[1]
Motivate your input here
[2]
There are so many possible ignition sources that the only way to define the activation factor is to go through a review of possible fire sources, classified in the categories:  main activities, heating systems, electrical installations, secondary activities and areas classified for explosion hazards.
[3]
Factor a is the sum of the relevant values of ai, which can be found in the next tables. Check on all applicable situations and a will be calculated automatically.
[4]
Defects on heating systems are well-known fire causes. The probability of a fire originated in the heating system depends on the type of heat transfer, the location of the heat generator and the type of fuel used.
[5]
Defects of electrical installations are well-known fire causes. The probability of a fire of electrical origin depends on the way the installation is installed and maintained. Regular checking of code compliance offers a good guarantee for a safe installation.
[6]
The presence or occasional escape of flammable vapours, gases or dusts is an additional source of fire.
[7]
Secondary activities are only taken into account when they create an additional number of fire sources, compared with the main activities. Welding e.g. will not be aggravating in a metalwork shop but must be taken into account in a carpentry shop.
[8]
X is total number of persons that will have to evacuate the compartment.
[9]
When "user defined" is selected, this value will be accepted; When a occupant load factor is given from the list, it will be multiplied by  b x l.
[10]
For more details see on page Info A
[11]
 E.g. in a hospital, it is clear that the minimal width of an exit unit is that of the beds which are used in the hospital.
[12]
It is not allowed to have more than 120 persons per exit unit. You shall not enter a higher number. Increase first the value of x (the number of exit units).
[13]
Factor p corrects the evacuation time for the lack of mobility of the occupants and for other unfavourable circumstances..
[14]
Such as patients or elderly, handicapped or sleeping persons (in hotels)...
[15]
equivalent length of vertical travelling path

[16]
evacuation times of more than 900 seconds are problematic
[17]
If egress simulation software such as Exodus, Simulex, … has been used to define the required safe egress time, the result can be entered here: the value entered will be used to calculate the evacuation time factor t
[18]
Factor c defines the value of the content of the compartment. It is calculated from is monetary value and replacement possibilities.
[19]
'Property' means as well the compartment itself as the goods in it, as its occupants.
[20]
Currency used
[21]
The activity in the compartment will be hampered or interrupted by a fire. The added value / turnover ratio  is a good reference for the sensitivity for business interruption.
[22]
correction of average