Building Material Non-Combustibility Apparatus with Maximum
Temperature 900°C
Description:
The EN ISO 1182 (IMO FTPC Part 1, ASTM E 2652) system has been
designed with significant new features. Rather than the traditional
variac control, where it is possible to supply too high a current
to the heater element during the heating cycle, YUYANG has
automated this process by using modern electronics. The benefits of
this system over traditional variac systems, which considerably
extend the life of the furnace, are:
soft start
ramp rate
power limit
over temperature device
Standards:
EN ISO 1182 Reaction to fire tests for building products --
Non-combustibility test
GB/T 5464 Test Methods for building materials non-combustibility
BS 476-4 Fire tests on building materials and structures -
Non-combustibility test
Specification:
The ISO 1182 apparatus consists of the following:
SPECIAL TUBE FURNACE
Manufactured from steel with a polished finish. This single zone
furnace has a maximum operating temperature of 900°C. The furnace
is easily replaceable during maintenance and servicing procedures.
INSTRUMENTATION
A 19" instrument case houses all the instrumentation. This unit
features a temperature controller, an over-temperature alarm and a
power controller, which controls the furnace temperature at 750°C,
compensating for supply voltage fluctuations and displaying the
power (Watts) being supplied to the furnace.
SOFTWARE (NonComb)
The software is a Microsoft Windows based application with simple
push button actions, data entry fields, check boxes and other
standard Windows operations.
The operator can monitor temperatures on a Status panel, before
performing a test, without recording any data. Before a test, the
specimen information (material name, density, mass, laboratory
name, etc.) is entered into the computer and saved to a file.
During a test, the temperature of the furnace, specimen surface and
specimen centre thermocouples are recorded at a rate of 2 Hz (i.e.
every 0.5 seconds) and the temperatures displayed on a graph in
real time. Also the initial, maximum and final temperatures
recorded by the three thermocouples are displayed during the test
run.
After the test, the user is prompted to enter any comments about
the material performance, the total time of sustained flaming and
the final mass. The appropriate temperature rises are calculated
and then a report for the test specimen can be generated.
The test report shows the material information, the initial,
maximum and final temperatures, the required temperature rises, the
total flaming time, the mass loss (actual and as a percentage of
the initial mass) and a graph of the recorded temperatures against
time. The test report also includes a reference to the pass-fail
criteria given in the appropriate Standards and states whether the
specimen meets these criteria.
All the test data is saved to the hard disk as an ASCII file which
can then be imported into spreadsheets for additional analysis.
