ISO 5660-1 Reaction-to-fire tests — Heat release,smoke production and mass loss rate — Part 1: Heat release rate (cone calorimeter method)

1 Scope

This part of ISO 5660 specifies a method for assessing the heat release rate of a specimen exposed in the horizontal orientation to controlled levels of irradiance with an external igniter. The heat release rate is determined by
measurement of the oxygen consumption derived from the oxygen concentration and the flow rate in the combustion product stream. The time to ignition (sustained flaming) is also measured in this test.

2 Normative references

The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 5660. For dated references, subsequent amendments to, or revisions of, any of these publications do
not apply. However, parties to agreements based on this part of ISO 5660 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references,
the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards.

ISO 554:1976, Standard atmospheres for conditioning and/or testing — Specifications ISO 13943:2000, Fire safety — Vocabulary
ISO/TR 14697:1997, Fire tests — Guidance on the choice of substrates for building products