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Building product’s propensity to undergo continuous smouldering EN 16733



​We determine the reaction to fire properties and fire class of construction products. As our customer you can benefit from our services during the product development and we help you to plan the testing arrangements for determining the fire class of your product.

This test method is intended for all building products classified according to EN 13501-1. Criteria concerning continuous smouldering are not shown in the classification standard because not all material have the propensity to undergo continuous smouldering. Requirement of testing materials propersity to undergo continuous smouldering will be in the relevant product standards.

Test specimen is mounted vertically and exposed to gas flame for 15 min. Smouldering is detected by measuring temperatures with six thermocouples which are positioned on the center line of the test specimen at 100 mm intervals.

Smouldering to the top or either vertical side edge of specimen, ignition of specimen and temperature rise of thermocouples are observed during the test.

If the test specimens ignites in the beginning of test according to the criteria of the standard, this test method is not suitable for the product. 

Our testing services for construction products and fire classifications

We make tests according to the standard test methods for classification. The test methods depend on the fire class and product. We help also in planning of the test arrangements.

Test method which can be used in product development and in prediction of heat release and classification in SBI test: 

CE marking for construction products

Fire safety regulations in Finland

Regulations and guidelines concerning fire safety of buildings are shown in E1 the National Building Code of Finland, degree of the Ministry of the Environment on fire safety of buildings.

Tel.+358 20 722 7070
Fax+358 20 722 7001

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P.O. Box 47, FI-02151 Espoo, Finland
Tel. exchange +358 20 722 111
Opening hours Mon - Fri 8:00 - 16:30,
GMT +2 time zone
Fax +358 20 722 7001
Contact us

Tel. +358 20 722 7070
Fax +358 20 722 7001
Opening hours 9:00 - 11:00 and
12:00 - 15:00,
GMT +2 time zone