Standards Application
ISO 5660 Reaction to fire tests-Heat release, smoke production and mass loss rate.
ASTM E 1354 Method of test for heat and smoke release rates for materials and products using an Oxygen Consumption Calorimeter
BS 476 Pt.15 Fire tests on building materials and structures-Part 15: Methods for measuring the rate of heat release of products.
GB/T 16172-2007 Method of test for heat release rate of building materials.
NFPA 264 Standard method of test for heat and visible smoke release rates for materials and products using an oxygen consumption calorimeter
A、Ignition system
1、 10kV spark lighter with safe fire-off device. The lighter automatically detect its position via the lever which connects to the closing mechanism.
2、System automatic ignition, automatic timing, automatic gas closing and fire-off.
B、Exhaust system
1、Made up of axial flow fan, stainless steel exhaust pipe, diffusion plate, smoke collecting cover, exhaust pipe, orifice plate flow meter and thermometer.
2、 Stainless steel, long service life, including the cover, gas sampling needle, exhaust fan.
C、Gas sampling system
1、Including the ring sampler, getter pump, particle filter, cold trap, exhaust valve, water filter and filter of CO2 .
2、Three-stage filtration at an precision of 0.5um.
3、Freezing cold trap, air-conditioning refrigeration system, control the temperature of 0 ~ 5 ℃
4、Sampler has 12 pores opposite to the direction of air flow. Built-in dust filter is 685mm away from the smoke collecting cover.
D、Measuring system
1、Paramagnetic oxygen analyzer, range 0-25%; British imported SERVOMEX oxygen sensor, linear response.
2、 Smoke density is measured with a laser system.
3、High precision load sensor measures the weight change of sample material during testing process.
4、Temperature control system: PID temperature control, three thermocouples measure radiation cone temperature.
E、User operating system
1、Laboratory used professional Labwiew control system, user friendly, easy to operate, precise control.
2、PID temperature control module is linked with power adjusting module. Programmable controller adjust the thermostat control.
3、Signal acquisition and processing module is linked with the air flow circuit control module through the programmable logic controller to calculate the output, intelligent adjustment of the preset wind speed. The system provides the query function. The system will automatically make sample serial number and store the serial number and temperature curve in the database within the system, and can be inquired by entering the sample number, test date, etc.
Introduction
Heat release is the core measurement parameter for assessing material and produc
