INTRODUCTION

This large calorimeter is designed according to ASTM1537-16,ASTM C1822-17,ASTMC1590-17, this calorimeter can complete the combustion performance test of soft furniture mattress exposed to flame ignition source.

The test part of the calorimeter can meet the requirements of ASTM1537-16,ASTM C1822-17,ASTMC1590-17 and Test Method for Solid Room Fire of Surface Products"

Standards

• GB/T 34441-2017
• GB/T 20286-2006
• GA 111-1995
• ISO 9705-2 Reaction-to-fire tests — Full-scale room tests for surface products
• GB/T 27904-2011
• 16 CRF 1633.STANDARD FOR THE FLAMMABILITY (OPEN FLAME) OF MATTRESS SETS
• ASTM E1537-16: Standard Test Method for Fire Testing of Upholstered furnite
• ASTM C1590-17: Standard Test Method for Fire Testing of Mattresses
• ASTM C1822-17: Standard Test Method for Fire Testing of Stacked Chairs

Main features

1.Testing room:

• The fume hood is located outside the door (smoke outlet) to collect smoke;

Open test room:

• The fume hood is positioned directly above the sample and the bottom edge is 2400 mm away from the ground.
• Conical collector size: 3000mm X 3000mm, height 1000mm
• The conical collector has 900mm X 900mm X 900mm X 900mm cubic mixing chamber on the top, and the mixer is installed inside

2.The smoke exhaust pipe consists of a diversion section (x2), a straight section, a measuring section and a fan

The measuring section is equipped with wind speed probe, thermocouple, optical system and sampler.

Smoke exhaust capacity of fan is not less than 0.5m³/s

Control cabinet

• 19 inch standard cabinet, simple appearance, science and technology
• Control system center, integrated computer, display, analyzer, cold trap, control and data acquisition system.
• 19 inch display, Labview control software, electronic control and pneumatic configuration panel.
• Computer: CPU I3, memory 4G, hard disk 500G Win7/Win10 system
• This large furnite calorimeter is equipped with imported analyzer (domestic analyzer is optional)
  • Measurement of Gas Concentration of O2, CO2 and CO.
  • O2:The range is 0-100%, the error is less than 0.01%, the repeatability is less than 0.01%, and the response time is less than 7s.
  • CO2: Range: 0-10%, error: 1% FS, repeatability < 2%, response time < 7s;
  • CO: range 0-1%, error 1% FS, repeatability < 1%, response time < 8s.

• Optical system, one-button 5-level automatic transmittance calibration device;
• Light Source: 0.5mW Laser Generator
• Imported Silicon-based Amplified Photoelectric Detector
• Imported filters (25%, 50%, 79%)
• Motor Driven Optical Wheel and Positioning Device
• Wind Speed Control System
  • Two-way probe, 304 stainless steel, 32mm in length and 14mm in diameter, separated into two separate chambers
  • Imported Micro-differential Pressure Transmitter, Range 0-2000 Pa, Resolution 1%FS
  • Three-phase frequency converter fan, closed-loop control of frequency converter, wind speed can be set, adjustable
• Gas sampling system
  • Sampler, 304 Stainless Steel
  • Ash filter, secondary filter, precision filter (0.2um), three-stage filter system, remove impurity particles in sample gas.
  • Refrigerator, compressor condenser, precise control of the temperature of gas collected at 4℃±1℃, condensation dewatering
  • Deep filtration of moisture in sample gas by discolored silica gel
  • Aspirator pump:gas sampling system adopts sampling diaphragm pump displacement of 10L/min~50L/min.
• Gas control system
  • Square Burner for ASTM 1537-16
• Burner:consisting of two T-shaped burners as per ASTM C1822-17 and ASTMC1590-17.
• Mass Flow Controller
  • Mass Flow Controller, control the Gas Flow Accurately.
  • T burner, flow rate 12L/min.
  • Square burner, flow rate 13L/min.
• Ignition Controller
  • 15KV High Voltage Pulse Electron Fire
  • Flame detection function, ignition failure or flame extinction, the controller will automatically cut off the gas valve.

• Weighing system (optional)
  • Weighing platform, range 0-100kg,accuracy 150g；
  • Waterproof design of weighing system to prevent damage to heavy system during fire fighting;
• Video recording
  • 12 Megapixel HD Camera
  • Video Recording Software
• The interface of LABVIEW is modern, simple and rich in functions.
  • The software adopts modular design, independent modules such as system setup, system calibration, test, test report, etc.
  • The test data can be read by engineering units and physical units, and displayed by data windows and curves and charts.
  • The data you want to view can be selected by checking.
  • Provide preview function of test report, which can be printed or saved as Excel or PDF.
  • Test parameters can be viewed and corrected.
  • The test curve can be scaled and dragged.
  • The original data, test results and test reports are provided.