About us

TUNNEL SAFETY TESTING, S.A (TST) is a Spanish company, constituted in 2005, that operates in concession regime, the facilities of the Test center of "San Pedro de Anes". The Center as well as its facilities, belong to BARREDO FOUNDATION.

The fire and ventilation situations in tunnels are made by means of tests on real scale in an experimental tunnel.


The laboratory allows the test of ventilators of the types and sizes normally used in the tunnels and other facilities. The tests are made according to EN12101-3:2002.

Our capabilities

icono_verificacionFire and ventilation tests at a real scale in controlled conditions, for research and validation activities.


icono_verificacionHigh temperature fan testing Laboratory according to the European Standard EN 12101-3. According to the EU Directive 89/106/CEE, these tests are required for the CE mark of all mechanical systems for heat and smoke extraction in buildings and other civil infrastructures.



icono_verificacionPractical and theoretical training courses in the field of tunnel ventilation and fire problems.


icono_verificacionMachine clean hot smoke generation for testing ventilation.

More information on the inside pages.

September 2018

Applus+ to present its fire safety services at Conference on Road Tunnel Operations and Safety in Lyon

August 2018

Applus+ Laboratories adheres to ITA-COSUF, committee dedicated to the improvement of security and protection in tunnels

June 2018

The Zitron brand axial fan measures over 2 m in diameter and features 1 MW of capacity. Testing took place at the Applus+ TST fire laboratory in Asturias, Spain, which specialises in ventilation systems.

March 2018

Applus+ TST, in collaboration with the Spanish company HISPAMAST, planned and organised the training programme for this prestigious fire brigade from the South Tyrol which from 2025 will be put in charge of the world’s second biggest rail tunnel.

January 2018

Applus+ acquires Tunnel Safety Testing (TST), specialists in fire tests in tunnels

“San Pedro de Anes” Experimental Center 33189 Siero (Asturias) SPAIN
Phones: +34 985 74 16 45/+34 985 74 42 26
e-mail: info.tst@applus.com

Copyright (c) TST. Tunnel Safety Testing S.A.

AS-246 road Km. 14,5 (Siero)

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