M606A Oxygen Index Tester for Flame-Retardant Wood and Plastics

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M606A Oxygen Index Tester for Flame-Retardant Wood

Product ID：WRyzs011

Price: Please inquire PDF Format

Supply Ability:50SETS/MON

Port:SHENZHEN

Product Introduction
Other information

Model NumberM606A

Brand NameQDSHANFANG

Payment TermsTT，PAYPAL，Alibaba.com Pay

M606A Oxygen Index Tester for Flame-Retardant Wood

Product Introduction
The M606A Oxygen Index Tester is designed to evaluate the combustion characteristics of polymers and other combustible materials by determining the minimum oxygen concentration required to sustain combustion under specified test conditions.
Suitable for flame-retardant wood, plastics, rubber, fibers, foam plastics, artificial leather, films, sheets, and textiles, this oxygen index testing instrument helps laboratories assess material flammability and compare flame-retardant performance.
The instrument is designed with reference to the following standards:
•    GB/T 5454-1997: Textile Burning Behaviour — Oxygen Index Method
•    GB/T 2406-2008: Plastics — Burning Behaviour — Oxygen Index Method
•   GB/T 10707-2008: Rubber — Determination of Burning Behaviour — Oxygen Index Method
• GB/T 8924-2005: Test Method for Burning Behaviour of Fiber-Reinforced Plastics

Performance Features
• Dual gas flowmeters: Separate glass rotor flowmeters regulate oxygen and nitrogen flow.
• Three pressure gauges: Monitor oxygen inlet pressure, nitrogen inlet pressure, and mixed-gas outlet pressure.
• Manual ignition device: Dedicated manual igniter supports controlled ignition.
• Simple operation: Straightforward instrument structure facilitates routine laboratory testing.
• Wide oxygen concentration range: Adjustable oxygen concentration from 10% to 60%.
• Quartz glass combustion tube: Provides a transparent chamber for observing specimen combustion.

Working Principle
The M606A Oxygen Index Tester mixes oxygen and nitrogen to create a gas atmosphere with a controlled oxygen concentration. A vertically mounted specimen is placed inside the quartz glass combustion tube and ignited under specified test conditions.
The oxygen concentration is adjusted to determine the minimum oxygen volume percentage that can sustain combustion. This value, known as the limiting oxygen index (LOI), is used to evaluate and compare the combustion behavior of different materials. A higher oxygen index generally indicates that a material requires a higher oxygen concentration to sustain burning under the test conditions.

Technical Specifications

Parameter	Specification
Model	M606A
Application	Oxygen index testing of flame-retardant wood, plastics, rubber, fibers, foam, textiles, and related materials
Combustion tube material	Quartz glass
Combustion tube inner diameter	75 mm
Combustion tube height	350 mm
Oxygen concentration adjustment range	10%–60%
Specimen holder inner-frame dimensions	140 × 38 mm
Required gases	Industrial-grade oxygen and nitrogen, supplied by the user
Pressure gauge range	0–0.4 MPa
Operating temperature	10–35°C
Relative humidity	45%–75%
Instrument dimensions	560 × 300 × 360 mm

Application Scenarios
• Flame-retardant wood: Evaluating the combustion behavior of treated wood and wood-based materials.
• Plastics and polymers: Comparing the oxygen index of plastic products and polymer formulations.
• Rubber materials: Assessing combustion characteristics of rubber compounds.
• Textiles and fibers: Testing the flammability of fabrics, fibers, and related materials.
• Foam and flexible materials: Evaluating foam plastics, films, sheets, and artificial leather.
• Research and quality control: Supporting material development, product comparison, and laboratory flammability testing.

M606A Oxygen Index Tester vs. General Flammability Testing Equipment

Comparison Item	M606A Oxygen Index Tester	General Flammability Testing Equipment
Primary measurement	Minimum oxygen concentration required to sustain combustion	Depends on the test method and instrument
Test atmosphere	Controlled oxygen and nitrogen mixture	May use ambient air or another specified atmosphere
Oxygen concentration adjustment	10%–60%	Varies by instrument
Gas flow control	Two glass rotor flowmeters	Depends on configuration
Pressure monitoring	Three pressure gauges	Depends on configuration
Typical applications	Wood, plastics, rubber, foam, fibers, and textiles	Material-specific combustion and flammability tests
Main evaluation value	Quantitative oxygen index for comparing materials	May evaluate ignition, flame spread, burning rate, or other properties

Frequently Asked Questions
Q1: What does the M606A Oxygen Index Tester measure?
It measures the minimum oxygen volume concentration required to sustain combustion under specified test conditions.
Q2: Which materials can be tested?
Typical materials include flame-retardant wood, plastics, rubber, fibers, foam plastics, artificial leather, films, sheets, and textiles, subject to the applicable test method and specimen requirements.
Q3: What is the oxygen concentration adjustment range?
The oxygen concentration can be adjusted from 10% to 60%.
Q4: Which gases are required?
Industrial-grade oxygen and nitrogen are required. The user must provide the gas supplies.
Q5: What is the size of the combustion tube?
The quartz glass combustion tube has an inner diameter of 75 mm and a height of 350 mm.
Q6: What pressure range do the gauges cover?
The supplied pressure gauges have a range of 0–0.4 MPa.
Q7: Which standards does the M606A support?
The supplied specifications list GB/T 5454-1997, GB/T 2406-2008, GB/T 10707-2008, and GB/T 8924-2005. Confirm current standard editions and test-method compatibility before formal compliance testing.
Q8: Does a higher oxygen index mean better flame resistance?
Generally, yes. A higher oxygen index means a material needs a higher oxygen concentration to sustain combustion under the test conditions. However, it does not replace other fire-safety tests or independently establish a material's overall fire rating.

Frequently Asked Questions
Q1: What does the M606A Oxygen Index Tester measure?
It measures the minimum oxygen volume concentration required to sustain combustion under specified test conditions.
Q2: Which materials can be tested?
Typical materials include flame-retardant wood, plastics, rubber, fibers, foam plastics, artificial leather, films, sheets, and textiles, subject to the applicable test method and specimen requirements.
Q3: What is the oxygen concentration adjustment range?
The oxygen concentration can be adjusted from 10% to 60%.
Q4: Which gases are required?
Industrial-grade oxygen and nitrogen are required. The user must provide the gas supplies.
Q5: What is the size of the combustion tube?
The quartz glass combustion tube has an inner diameter of 75 mm and a height of 350 mm.
Q6: What pressure range do the gauges cover?
The supplied pressure gauges have a range of 0–0.4 MPa.
Q7: Which standards does the M606A support?
The supplied specifications list GB/T 5454-1997, GB/T 2406-2008, GB/T 10707-2008, and GB/T 8924-2005. Confirm current standard editions and test-method compatibility before formal compliance testing.
Q8: Does a higher oxygen index mean better flame resistance?
Generally, yes. A higher oxygen index means a material needs a higher oxygen concentration to sustain combustion under the test conditions. However, it does not replace other fire-safety tests or independently establish a material's overall fire rating.