Why is the SBI so important?
Most construction products sold in Europe will shortly need to be
tested and classified using a new test method called the Single
Burning Item (the SBI) EN 13823. The construction products
directive of the European commission will require that all European
Member states eventually use this, instead of the traditional
regulatory methods used in each country, to classify most building
products. The Commission recently defined the criteria for assessing building
products into classes A-F. These are given in the table below.
Though other test methods are required the SBI is needed to
classify all non flooring products into the classes A2, B, C and D
which are the major classes inhabited by most products other than
those that are principally inorganic classified as non-combustible. What is the SBI test?
The Single Burning Item (SBI), is a method of test for determining
the reaction to fire behaviour of building products (excluding
floorings) when exposed to the thermal attack by a single burning
item (a sand-box burner supplied with propane). The specimen is
mounted on a trolley that is positioned in a frame beneath an
exhaust system. The reaction of the specimen to the burner is
monitored instrumentally and visually. Heat and smoke release rates
are measured instrumentally and physical characteristics are
assessed by observation. Software: Instrument Supplied with Software at no extra charge. Software
updates provided free of charge. Single Burning Item (SBI) consists ofTrolley, which mounts the specimen, with primary sand-box burner on
the corner. Test room, with trolley position frame, secondary sand-box burner
on the support frame. A proper observation window should be on side
of the wall. Hood with baffles and collector fitted to the room
above the frame. Stainless steel ducting, with instrumented section, which has
combustion gas sampling probe, bi-directional probe, thermocouples,
and light attenuation system for smoke measurement. Gas analysis rack, with gas sampling system, gas analysis sensor,
and data acquisition system. Combustion gas sampling system, consisting of 3-stages filters
(accuracy up to 0.5 microns), refrigerated cold trap, diaphragm
pump, moisture trap. Propane mass flow controller for sand-box burner, accuracy up to
±1.5% F.S.
Oxygen analyzer, paramagnetic type with the range of 0 to 25%.
SERVOMEX® or ABB® gas analyzer is optional. Carbon dioxide analyzer, NDIR type with the range of 0-1% &
0-10%. SERVOMEX® or ABB® gas analyzer is optional. Data acquisition system, maximum record the data 50 times per
second. Operation software, with the functions of the standard test
program, sensor calibration, auto system calibration, status
monitoring, and report management. Advanced Options
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