ISO 13785-2:2002

Reaction-to-fire tests for façades — Part 2: Large-scale test

ISO 13785-2:2002 specifies a method of test for determining the reaction to fire of materials and construction of façade claddings when exposed to heat and flames from a simulated interior compartment fire with flames emerging through a window opening and impinging directly on the façade. The information generated from this test may also be applicable to the scenario of an external fire impinging on a façade; however, the results may not be applicable for all fire exposure conditions. This method is applicable only to façades and claddings that are non-loadbearing. No attempt is made to determine the structural strength of the façade or cladding. This test is not intended to determine the fire behaviour of a given building façade. Details such as balconies, windows, window shutters, curtains, etc., are not considered in this test. This test does not include the risk of fire spread e.g. through the window details of the façade system as it only is constructed as a façade wall. There is clear evidence that an internal corner (also called a re-entrant corner) configuration produces a more intense fire exposure than a flat façade. The most commonly encountered internal re-entrant corner is with an angle of 90°. The test façade specimen therefore contains an internal corner with a re-entrant angle of 90°. The test method described is intended to evaluate the inclusion of combustible components within façades and claddings of buildings which are otherwise of non-combustible construction.

Essais de réaction au feu des façades — Partie 2: Essai à grande échelle

General Information

• Status: Published
• Publication Date: 05-Dec-2002
• ICS: 13.220.50 - Fire-resistance of building materials and elements
• ICS: 91.060.10 - Walls. Partitions. Facades
• Technical Committee: ISO/TC 92/SC 1 - Fire initiation and growth
• Drafting Committee: ISO/TC 92/SC 1/WG 7 - Large and intermediate scale fire test methods
• Current Stage: 9020 - International Standard under periodical review
• Start Date: 15-Apr-2024
• Completion Date: 15-Apr-2024

Relations

• Consolidated By: ISO/TS 22475-2:2006 - Geotechnical investigation and testing — Sampling methods and groundwater measurements — Part 2: Qualification criteria for enterprises and personnel
• Effective Date: 06-Jun-2022

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 13785-2
First edition
2002-12-15
Reaction-to-fire tests for façades —
Part 2:
Large-scale test
Essais de réaction au feu des façades —
Partie 2: Essai à grande échelle

Reference number
ISO 13785-2:2002(E)
© ISO 2002

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ISO 13785-2:2002(E)
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ISO 13785-2:2002(E)
Contents Page
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Principle . 3
5 Test facility and test facility calibration . 3
6 Fire source and exposure . 5
7 Test specimen . 6
8 Test specimen instrumentation . 6
9 Test specimen conditioning . 8
10 Test environment . 9
11 Procedure . 9
12 Expression of results . 9
13 Precision . 9
14 Test report . 10
Annexes
A Standard ignition source . 11
B Alternative ignition sources . 13
B.1 Liquids . 13
B.2 Wooden cribs . 13
Bibliography. 16
©
ISO 2002 – All
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