What are the three main criteria for determining fire resistance?

Stability (R), Integrity (E), and Insulation (I), which are evaluated during a standard fire test as per IS 1642.

It is the potential calorific energy of all combustible materials in a space, divided by the floor area, typically expressed in MJ/m² (Clause 3.7).

Does this standard specify the required fire resistance for a hospital?

No, this standard provides the principles. The specific fire resistance ratings required for different building types like hospitals are given in IS 1641 and the National Building Code (NBC).

IS 8274 Part 1

: 1992

Fire Resistant Structures - General Principles

CurrentSpecializedGuidelinesBIMFire Safety · Fire Safety

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This standard lays down the general principles for the design of fire-resistant structures. It defines key terminology like fire load and fire resistance rating, and outlines the criteria (stability, integrity, insulation) used to evaluate the performance of structural elements during a fire.

Provides general principles for the design and construction of fire-resistant building structures and elements.

Quick Reference Values

Fire Resistance CriteriaStability, Integrity, Insulation

Basis for Fire Resistance TestTime-temperature curve as per IS 3809

Fire Load DefinitionHeat quantity per unit floor area (MJ/m^2)

Standard Fire Resistance Ratings30, 60, 90, 120, 180, 240 minutes

Practical Notes

This code is foundational and should be used alongside the National Building Code (NBC) Part 4: Fire and Life Safety, which provides comprehensive and mandatory requirements.

The fire resistance rating (in minutes) indicates the duration an element can perform its function in a standard test fire, not that it is 'fireproof'.

Understanding the concept of 'fire load' (Clause 6) is crucial for determining the required fire resistance for different building occupancies.