Building Materials Single Burning Item Flammability Testing Device

Whats/App: +86 156 1874 6768

Web: standard-groups.com

Standards

GB 8624-2012: building materials and product combustion performance rating

GB/T 20284-2006: "single combustion test for building materials or products"

EN 13823:2002 :"building products fire response - single combustion test method for building products without paving materials"

ISO – Plastics—Smoke Generation, Part 2: Single-Chamber Test for Optical Density

ASTM E662-2014 – Standard Test Method for Specific Optical Density of Smoke Generated by Solid Materials

BS 476-6:1989 – Fire Tests on Building Materials: Method of Test for Fire Propagation

EN 13501-1:2007 – Fire Classification of Construction Products and Building Elements, Part 1: Reaction to Fire

Principles

Consisting of two right angles to the vertical wing exposed to the bottom of the right Angle of the samples produced by the main burner flame, the flame is produced by propane gas combustion, propane gas through the sand box of burner and produce (30.7 + 2.0) kW heat output. The combustion performance of the sample was evaluated by the test process of 20min. Performance parameters include: heat release, smoke production, flame propagation and combustion of particulate matter.

Features

1. the computer data acquisition system can automatically record the oxygen concentration, concentration of carbon dioxide, smoke density, flue temperature, environment temperature and humidity (data collection interval 3 s), can be automatically calculated the heat release quantity, THR600s, gas production rate index and smoke production rate;

2. The combustion chamber shall be installed with a screw fixing cabinet, which can be disassembled; The thermal insulation exhaust duct, the insulation gas cover and the thermal collector adopt double layer insulation function to ensure the accuracy of data collection.

3. The combustion control system adopts the gas solenoid valve to ensure the safety of the equipment;

4. High degree of automation and easy to learn;

5. System modular design for easy maintenance.

Electronic hardware:

The control core adopts imported omron PLC and temperature expansion module to reduce interference and improve stability.

The output terminal adopts the new solid-state contactless switch device of schneider, with high reliability, low noise and fast switching speed.

The data interface adopts rs-232 standard serial port communication, stable data, high reliability and easy to use.

Test process safety: the combustion control system adopts the gas solenoid valve, and the igniter adopts the automatic ignition method.

Software part:

Friendly software interface, easy to operate.

The software control system includes automatic control and manual control.

Automatic control mode can run automatic control equipment, automatic detection, automatic data collection, automatic display test curve, completion test, at the same time also can automatically generate test results, the automatic generation of test report, etc.

The manual control mode can help the debugging function of the equipment.

Parameters

Item	Specification
Combustion laboratory size	3000mm * 3000mm * 2800mm
Outline dimensions of smoke pipe in combustion chamber	5200mm * 3000mm * 1800mm
Control box outline dimension	800mm * 1200mm * 1500mm
Smoke extraction speed	0.50m³/s ~ 0.65m³/s
Temperature measurement device	Imported K-type armored thermocouple, 3mm diameter
Temperature measurement precision	±0.5℃
Accuracy of pressure sensor	(Not specified)
Test time	1560s; Time recording system accuracy: 0.1s
Oxygen analysis (paramagnetism) range	(0-25)%
Oxygen analysis response time	<12s
Oxygen analysis noise drift (within 30min)	≤100 x 10⁻⁶
Oxygen analysis data collection and output resolution	>100 x 10⁻⁶
Carbon dioxide (IR) measurement range	(0-10)%
Carbon dioxide measurement linearity	>1% of full range
Carbon dioxide data collection and output resolution	>100 x 10⁻⁶
Detector color standard accuracy	±5%
Detector output linearity (transmittance)	<3%
Detector absolute penetration rate	<1%
Test environment temperature	(10 ~ 30)℃
Control cabinet power supply voltage	AC 220V 50HZ
Maximum equipment power	11.5KW
Alarm condition	Flue gas pipeline temperature >400℃
Sample adjustment status temperature	(21-25)℃
Sample adjustment status humidity	(45-55)% RH
Distance of test piece from opposite side	2100mm

Environment requirements

Power supply voltage: AC 220V 50HZ safety ground wire;

380V 11KW three-phase power supply safety ground wire;

Laboratory temperature (23 + 2) ℃;

Laboratory humidity :(40-60)%RH;

Test equipment area: 4m x 5.5m by 5m

Test principle

A sample consisting of two vertically angled vertical wings is exposed to the flame produced by the main burner at the bottom of the right angle, the flame is produced by the combustion of propane gas, the propane gas passes through the sandbox burner and produces (30.7 ± 2.0) kW of heat output The

The combustion performance of the sample was evaluated by the entire test procedure of 20 min. Performance parameters include: heat release, smoke production, flame propagation and burning dripping and particulate matter.

Prior to igniting the main burner, the heat output and smoke generation of the burner itself should be measured for a short time using the auxiliary burner remote from the sample.

Some parameters can be measured automatically, while others can be obtained by visual inspection. The smoke pipe is equipped with a sensor for measuring the temperature, light attenuation, the mole fractions of O2 and CO2. and the airflow in the pipeline. These values are automatically recorded and used to calculate the volumetric flow rate, heat release rate (HRR) and smoke rate (SPR).

The transverse propagation and burning of the flame and the particulate matter can be measured using a visual method.

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