---
title: "Part IV — Test Method to Determine the Heat Release Rate From Cabin Materials Exposed to Radiant Heat — ADDITIONAL AIRWORTHINESS SPECIFICATIONS FOR OPERATIONS, Part-26 · Avioverse"
description: "Refer to CS-25 Appendix F Part IV initial issue or later amendments."
url: "https://avioverse.aero/regulations/easa/additional-airworthiness/additional-airworthiness-specifications-for/appendix-f/part-iv-test-method-to-determine-the-heat-release-rate-from-cabin-materials"
---

# Part IV — Test Method to Determine the Heat Release Rate From Cabin Materials Exposed to Radiant Heat

ADDITIONAL AIRWORTHINESS SPECIFICATIONS FOR OPERATIONS · Regulation (EU) 2015/640 · EAR revision 20 Mar 2026

IR Implementing rule

## Part IV — Test Method to Determine the Heat Release Rate From Cabin Materials Exposed to Radiant Heat

Refer to CS-25 Appendix F Part IV initial issue or later amendments.

IR — Regulation (EU) 2015/640 · ED Decision 2015/013/R · Part-26 Easy Access Rules · EAR revision 20 Mar 2026

[All rules in Appendix F to CS-26](https://avioverse.aero/regulations/easa/additional-airworthiness/additional-airworthiness-specifications-for/appendix-f)

Consolidated from the EASA Easy Access Rules (revision 20 Mar 2026, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.