In engineering theory and by compliance, all fire systems of an infrastructure should be designed based on total fire load. This fire load is calculated for all flammable substances present and their calorific values.
There are several methods for calculation and can be utilised on case to case basis such as Weight based or Inventory based or combination of both. There are other several associated exercises that help in better design of a fire system such as categorisation of fire load in various categories, allocation of fire fighting equipment and resources based on respective loads of areas, etc.
The key standards used in the study are NFPA 557, NFPA 551, NFPA 1 & NBC 2016 (India) Latest.