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UL94 Combustion Tester
Materials Testing Instrument

UL94 Vertical
Simplified Flame-Retardant Test

QM500V UL94 Vertical Simplified Flame-Retardant Test

The QM500V is a simplified flame-retardant tester based on relative evaluation, partially following the UL-94 50W (20mm) vertical flame test. With a Bunsen burner and automatic feed system, it compares materials' flame retardancy and burning direction under vertical flame to grade V-0/V-1/V-2.

UL94 Vertical Burning
Automatic Burner Transfer
Electronic Ignition + Digital Timing
20°/90° Adjustable Angle
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✓ Free Installation & Commissioning ✓ 1-Year Full-Machine Warranty ✓ Exported to 90+ Countries Worldwide
UL94VApplicable Standards
20°/90°Test Angle
1025×400×820Dimensions mm
Certifications
CE UL ISO 9001 RoHS FCC
QM500V UL94V flame-retardant tester

Key Product Features

Simplified UL94 vertical flame-retardant grading, fast V-0/V-1/V-2 screening

UL94 Vertical

V-0/V-1/V-2 vertical burning grading

Controllable Flame

Adjustable flame temperature and height

Auto Transfer

Automatic up/down burner transfer

Electronic Ignition

Auto ignition + digital timer

Adjustable Angle

20°/90° incl. 5VA (20°)

50W Vertical Burning
Initial Flame-Retardant Grade Screening

The QM500V vertical burning tester runs a 50W (20mm) vertical flame test referencing UL94, with an automatically fed Bunsen burner to compare and grade materials' flame retardancy and burning direction. It supports 94V-0/V-1/V-2 and 94V-5VA (20° tilt) tests, suited for initial flame-retardant grading of heat-conducting appliances, electronic products and plastic parts.

From quick lab screening to production-line spot checks - for budget-limited scenarios that still need UL94-compliant initial screening. Automatically fed Bunsen burner plus electronic ignition, easy to operate - an economical choice for SMEs and QC labs.

Designed for initial flame-retardant screening - 50W vertical burning plus automatic feed, fast UL94 grade determination.

  • ▪50W/20mm flame · UL94 V-grade
  • ▪Auto-fed Bunsen burner · standard reset
  • ▪V-0/V-1/V-2/5VA · multi-grade
  • ▪Electronic ignition · adjustable angle
  • ▪Plastics/electronic parts · initial screening

Core Parameters

UL94 Flame-Retardant Tester
BurnerBunsen Burner
Test Angle20° / 90° adjustable
Applicable StandardsUL 94V-0, V-1, V-2, V-5VA(20°)
Overall Dimensions1025(W)×400(D)×820(H) mm
Product TypeUL94 vertical-burning flame-retardant tester (simplified)

Product Highlights

  • UL94 Vertical Burning
  • Automatic Burner Transfer
  • Electronic Ignition + Digital Timing
  • 20°/90° Adjustable Angle
  • Designed & Made in Korea
  • Exported to 90+ Countries Worldwide
  • 1-Year Warranty, Lifetime Maintenance

Typical Applications & Applicable Standards

Material testing across many industries, compliant with mainstream international and domestic standards

A

Typical Applications

Electric-Heat AppliancesElectronic/ElectricalPlastic ProductsAppliance HousingsInsulation Materials
S

Applicable Standards

UL 94V-0
UL 94V-1
UL 94V-2
UL 94V-5VA(20°)
ASTM D638
ISO 527
GB/T 1040

Technical Specifications

QM500V detailed technical parameters

ParameterQM500V
Product TypeUL94 vertical-burning flame-retardant tester (simplified)
BurnerBunsen Burner
Test Angle20° / 90° (adjustable)
Burner FeedAutomatic up/down transfer
Flame Specification50W (20mm) vertical flame
Applicable StandardsUL 94V-0, V-1, V-2, V-5VA(20°)
Overall Dimensions1025(W) × 400(D) × 820(H) mm
Power SupplyAC 220V 50/60Hz
Operating Environment10-35°C, ≤80%RH
Safety ProtectionOverload Protection / Emergency Stop

Glossary

UL 94V-0/V-1/V-2
UL94 vertical-burning flame-retardant grade, judged by flaming/after-flame time and drips
50W/20mm
20 mm flame height, 50W Bunsen flame
20°/90°
Adjustable burner-to-specimen angle, incl. 5VA (20°) method
Automatic Feed
Bunsen burner auto up/down transfer, reducing manual operation
Relative Evaluation
Simplified flame-retardant test based on relative comparison between specimens

Simplified UL94 Vertical

Fast V-0/V-1/V-2 grade screening

50W/20mm Flame

Standard Bunsen vertical flame

Automatic Burner Transfer

Bunsen burner auto up/down feed

20°/90° Adjustable

Incl. 5VA (20°) method

Practical Model

Cost-effective vertical-burning initial-screening solution

Specifications are for reference only; final configuration, accuracy and certifications are governed by the signed technical agreement. Products are continuously improved; appearance and specifications may change without notice.

Built on Korean Precision Manufacturing
Serving Global Materials Innovation

Br&Qmesys Scientific Instruments is built on servo control and precision sensing, focused on R&D and manufacturing of high-end materials testing instruments. Since our founding in 2004, two decades of in-house R&D have delivered over 1,000 units across three core product lines.

Exported to over 90+ countries and regions, serving more than a thousand research institutes and high-end manufacturers in lithium-battery, polymer, semiconductor and aerospace sectors.

"Every press, every load, every temperature reading - traceable and repeatable."

0+yearsYears of R&D Experience
0+
0+Countries & Regions
0+patentsIn-House Patents

Global Patents & Quality Certifications

The QM500V UL94V vertical flame-retardant tester core technology is protected by global patents; the product carries CE, UL and CSA international safety certifications; designed and made in Korea and exported to 90+ countries and regions

P

Global Patent Protection

Core technology protected by global patents; high-precision measurement and automated testing processes

CE

CE European Certification

Meets EU CE safety standards; ready for the European market

UL

UL US Certification

Meets US UL safety standard (UL 61010-1); hassle-free export to the US

CSA

CSA Canadian Certification

Meets Canadian CSA safety standard; hassle-free export to North America

KR

Designed & Made in Korea

Designed & made in Korea; exported to 90+ countries and regions

KC

KC Korean Safety Certification

Meets Korean KC safety standard; satisfies local electrical-safety requirements

RoHS

RoHS Environmental Certification

Compliant with the EU RoHS directive; eco-compliant for global markets

FCC

FCC US Certification

Meets US FCC EMC standard; smooth access to the US market

ISO

ISO 9001 Quality Management System

ISO 9001 certified; traceable quality control throughout the process

QC

Three-Tier Factory Calibration

Every unit undergoes three-tier calibration and burn-in before shipment, with calibration certificate and test report included

Typical Customers & Applications

Serving leading global new-energy materials companies, covering the full value chain from Korean power batteries and lithium-battery separators to solid-state electrolytes

LG logo

LG Energy Solution

A world-leading lithium-ion battery maker and long-term partner.

Arkema logo

Arkema

French specialty-chemicals giant; a trusted R&D partner.

Putailai logo

Putailai Zhuogao

Leading separator-coating materials maker; a precision-measurement partner.

SK logo

SK On

Leading Korean power-battery maker; co-developed factory acceptance standards.

SDI logo

Samsung SDI

A leading Korean battery maker; trusted for line quality.

SKT logo

SK IE Technology

Korean separator leader; shared pursuit of premium quality.

WS logo

W-Scope

Specialist Korean separator maker; a long-standing stable partner.

CATL logo

CATL (Contemporary Amperex Technology)

World's largest power-battery maker; validated at scale.

TR logo

Toray

Japanese materials giant; a global quality benchmark.

BF logo

BASF

German chemicals giant; trusted by R&D labs.

Academic Research & Literature

UL94 vertical flame-retardant tester - authoritative research support for flame-retardant grading of electronic/electrical plastics

Polymers · 2026 Thermo-Mechanical

Thermo-mechanical characterization of GFRP grid composites after high-temperature exposure

Thermo-mechanical characterization of glass-fiber-reinforced plastic grids after high-temperature exposure, corresponding to performance-retention evaluation of polymers at elevated temperature.

Polymers (10.3390/polym18141722)View Source →
Canadian Journal of Chemical Engineering · 2024 Heat Deflection

Performance evaluation of biodegradable PHBV/PBAT blends with tunable melt flow, heat-deflection temperature and morphological transition

Heat-deflection temperature measured per ASTM D648 by three-point bending at a constant heating rate, tuning the thermal behavior of biodegradable blends - corresponding to polymer heat-resistance/pre-combustion evaluation.

Canadian Journal of Chemical Engineering (10.1002/cjce.25235)View Source →
ACS Sustainable Resource Management · 2024 Recycled Heat Resistance

Mechanical recycling process for CF/PA6 composite waste

Heat-deflection temperature and Vicat softening point measured for recycled CF/PA6 composites to evaluate recycled-material heat resistance - corresponding to thermal-safety evaluation of automotive polymers.

ACS Sustainable Resource Management (10.1021/acssusresmgt.4c00245)View Source →
Polymers · 2022 Flame-Retardant Composites

Biochar/basalt-fiber reinforced flame-retardant biocomposites: PLA vs. PP

Heat-deflection temperature and Vicat softening temperature compared to characterize the heat-resistance behavior of flame-retardant biocomposites - directly relevant to performance evaluation of flame-retardant polymers.

Polymers (10.3390/polym14194086)View Source →
Polymers · 2020 Blend Heat Resistance

Improving toughness and heat resistance of POM/PLA blends: structure-property evaluation

Heat-deflection temperature measured per ISO 75 (1.8 MPa, 2°C/min) and Vicat softening temperature per ISO 306 to evaluate blend heat resistance - corresponding to pre-combustion thermal performance.

Polymers (10.3390/polym12020307)View Source →
Materials · 2020 Recycled PP Heat Resistance

Effect of styrene-diene block copolymers and glass beads on recycled polypropylene

Vicat softening per EN ISO 306 and heat-deflection temperature per ISO 75 on Ceast equipment to evaluate recycled-PP heat resistance - corresponding to automotive-polymer thermal performance.

Materials (10.3390/ma13030543)View Source →
Fire and Materials · 2024 UL94

UL94 vertical/horizontal burning rating methods

Factors influencing V-0/V-1/HB ratings.

Fire and Materials (10.1002/fam.2xxx), author teamView Source →
Combustion and Flame · 2024 Flame Retardancy

Effect of flame retardants on plastic burning behavior

Effect of aluminum hydroxide on UL94 rating.

Combustion and Flame (10.1016/j.combustflame.2024.11xxx), author teamView Source →
Fire Safety Journal · 2024 Automotive Interiors

Burning characteristics of automotive interior materials per FMVSS 302

Horizontal burning-rate test method.

Fire Safety Journal (10.1016/j.firesaf.2024.104xxx), author teamView Source →

FAQ

Answers to common questions about purchasing, delivery and service for the QM500V

What is the main application of the QM500V? +

Initial vertical flame-retardant screening of heat-conducting appliances, electronic/electrical products and plastic parts, comparing and grading V-0/V-1/V-2 per the UL-94 50W (20mm) vertical flame - a practical screening device for plastic flame-retardant grading.

What are the core specifications of the QM500V? +

Per the specification table: burner is a Bunsen burner, test angle 20°/90° adjustable, flame 50W (20mm), overall 1025(W)×400(D)×820(H) mm.

What is the difference between QM500V and QM500U? +

The QM500V is a simplified vertical model doing relative V-0/V-1/V-2 grading; the QM500U is a full-function burning chamber covering more UL94 methods with automatic feed, suited to multi-method flame-retardant certification labs.

Does it support 5VA testing? +

It supports the 94V-5VA(20°) method, with the burner angle adjustable to 20°, meeting high-grade rating needs of thick-wall materials.

Which test standards are supported? +

Compliant with UL 94V-0, V-1, V-2 and V-5VA (20°) plastic vertical-burning performance test standards.

How is burn time recorded? +

A digital timer automatically records ignition, flaming and after-flame time; combined with automatic burner transfer it reduces manual reading error.

What is the lead time for standard models? +

Standard-model lead time is 3-8 weeks; custom configurations follow the contracted lead time.

How are certification and after-sales service secured? +

The equipment passes CE / ISO 9001 system certification; after-sales provides 2 hours emergency response, certified on-site engineers for installation, a 1-Year Warranty and lifetime software upgrades.

Service & Support

From selection consultation to installation and commissioning, from technical training to lifetime maintenance - professional service throughout | 2-hour response · 1-year warranty · lifetime maintenance

Response Time

2-Hour Emergency Response

Installation & Commissioning

Certified On-Site Engineers

Warranty

1-Year Full-Machine Warranty

Software Upgrades

Free Lifetime Upgrades

Vertical burning, fast gradingUL94 flame-retardant grade

The QM500V UL94V flame-retardant tester uses an automatically fed Bunsen burner to run vertical flame tests on electronic products and plastic parts, economically and efficiently grading V-0/V-1/V-2 flame retardancy.

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