All-in-One Foam Flammability Testing Solution

Designed for quality control and R&D laboratories in the insulation, packaging, construction and automotive industries, the Shenyang Baoruitong  foam combustion tester evaluates the horizontal burning characteristics of small foam specimens exposed to a small flame under laboratory conditions. It is suitable for cellular plastics with a density of less than 250 kg/m³ as determined per ISO 845:1985, covering rigid and flexible foam plastic flammability testing applications.

The tester supports the classification methods distinguished by the UL 94 standard: HF-1 and HF-2 vertical burning and HBF horizontal burning, making it an essential piece of flame test equipment for manufacturers of polyurethane foam, polystyrene foam and other cellular insulation materials.

Full Compliance with International Test Standards

The Shenyang Baoruitong  foam horizontal and vertical combustion tester is designed and manufactured in full compliance with globally recognized testing standards, ensuring test results are accepted by certification bodies and customers worldwide:

GB/T 8333-2022

• — Plastics: Test method for burning behavior of rigid cellular plastics (vertical burning method) — design standard

ISO 9772

• — Cellular plastics: Determination of horizontal burning characteristics of small specimens subjected to a small flame

ISO 9773

• — Plastics: Determination of burning behavior of thin flexible vertical specimens in contact with a small-flame ignition source

ASTM D 3014-04a

• — Standard test method for flame height, time of burning, and loss of mass of rigid thermoset cellular plastics

This multi-standard capability makes the Shenyang Baoruitong  tester a versatile foam flammability test instrument for laboratories that serve multiple markets or must meet both ISO and ASTM requirements.

Key Selling Points: Precision, Automation and Repeatability

Microcomputer-Controlled Automatic Testing

A single-chip microcomputer control system provides automatic timing readout and automatic display of all test-related times, eliminating manual stopwatch errors and improving test repeatability. The automatic Bunsen-burner ignition and freely settable ignition time, combined with controllable automated burner movement, deliver a fully automated foam burning test workflow that saves laboratory time and reduces operator variability.

Precision Flame Control

The tester features a brass Bunsen burner with an internal diameter of 9.5 mm ± 0.3 mm and a tilting range of 0–45°. The blue-flame height is freely adjustable from 15 mm to 100 mm, with a built-in flame-height ruler for quick and accurate setup. An optional thermocouple bracket measures burner temperature, supporting test conditions up to 900 °C.

Accurate Gas Flow Management

Equipped with a U.S. Dwyer float flowmeter with a maximum range of 100 mL, the instrument ensures stable and measurable gas flow. It operates with industrial-grade methane (concentration ≥ 98%, calorific value 37 ± 1 MJ/m³) fitted with a regulator and pressure gauge; propane (94 ± 2 MJ/m³) and equivalent mixed gas sources may also be used with comparable results.

User-Friendly Specimen Handling

The specimen holder offers vertical adjustment travel up to 100 mm and horizontal adjustment travel up to 70 mm, while the horizontal specimen holder can fold/retract 90° for flexible positioning. An optional textile specimen holder extends the instrument’s capability to textile flammability testing.

Large, Standard-Compliant Test Chamber

The combustion-test chamber volume exceeds 0.5 m³ (approximately 900 mm × 590 mm × 1050 mm), featuring a black background with background illuminance ≤ 20 Lux — meeting the optical requirements of international flammability standards for accurate flame observation and measurement.

Safe, Simple Operation

Operating on 220 V ± 10%, 50 Hz with a power consumption of less than 100 W, the tester is energy-efficient and safe to operate in ambient temperatures from −10 °C to 30 °C with relative humidity ≤ 85%. The compact design (1160 mm × 600 mm × 1310 mm) fits easily into existing laboratory layouts.

Applications Across Industries

The Shenyang Baoruitong  foam horizontal and vertical combustion tester is widely used for:

Foam insulation materials

• — flame retardancy testing of rigid polyurethane (PU) and polyisocyanurate (PIR) foam

Packaging foam

• — evaluation of expanded polystyrene (EPS) and polyethylene foam burning behavior

Building materials

• — foam plastic flammability classification for construction applications

Automotive interiors

• — flame resistance testing of foam seating and trim components

Textile and flexible foam

• — vertical burning tests on thin flexible specimens per ISO 9773

Why Choose the Shenyang Baoruitong  Foam Combustion Tester?

• One instrument covers UL 94 HF-1, HF-2 and HBF classification testing

• Compliant with ISO 9772, ISO 9773, ASTM D 3014 and GB/T 8333-2022

• Fully automated control with automatic timing and ignition for high repeatability
• Precision gas flow control with Dwyer flowmeter and adjustable blue-flame height

• Optional textile specimen holder for expanded application scope
• Reliable after-sales support, calibration guidance and global shipping from a professional flammability testing equipment manufacturer

About Shenyang Baoruitong

Shenyang Baoruitong  is a dedicated manufacturer of combustion testing instruments and laboratory equipment for the plastics, foam, textile and building materials industries. Committed to precision engineering and international standard compliance, Shenyang Baoruitong  helps manufacturers worldwide verify flame retardancy, improve product safety and meet regulatory requirements.

For more information about the Shenyang Baoruitong  Foam Horizontal & Vertical Combustion Tester, pricing or a quotation, please contact our sales team or visit our website.