This part of ISO 15029 specifies a hollow-cone nozzle method for the assessment of the persistence of a flame applied to various points within a pressurized spray of fire-resistant fluid.

This part of ISO 15029 is one of two basic measures of fire-resistance, and may be called up in regulations governing their use under the 7th edition of the Luxembourg Report¹⁾.

¹⁾ Safety and Health Commission for the Mining and other Extractive Industries, Doc. No. 4746/10/91 EN (for English version, FR for French version), April 1994, Requirements and tests applicable to fire-resistant hydraulic fluids used for power transmissions and control (hydrostatic and hydrokinetic), available from the Commission of the European Communities, Directorate-General V, Unit V.F.4 “Extractive, Iron and Steel Industries”, Bâtiment Jean Monnet, C4/65, L-2920 Luxembourg.