MOTIS VF-2 Automatic Vertical Flame Test Chamber

Overview

The MOTIS VF-2 Automatic Vertical Flame Test Chamber is an engineered solution for standardized flammability evaluation of textile materials, upholstery fabrics, foam fillings, and coated or laminated substrates used in transportation interiors, contract furnishings, and outdoor gear. Designed in strict accordance with the vertical flame propagation principle defined in ASTM D6413 and calibrated to replicate the thermal flux profile of a regulated Bunsen burner per ASTM D5025, the VF-2 delivers repeatable, operator-independent ignition and exposure sequences. Its core measurement methodology relies on controlled flame impingement at a fixed angle (0° vertical orientation) for specified durations, followed by quantitative assessment of afterflame time, afterglow time, char length, and whether flaming debris falls during testing — all parameters directly traceable to regulatory pass/fail criteria across aviation, automotive, and consumer product safety frameworks.

Key Features

• Motor-driven lateral translation system for precise, repeatable Bunsen burner positioning—ensures zero temporal lag between flame onset and specimen contact, eliminating manual intervention errors.
• Stainless steel test chamber with high-purity fused quartz side viewport (heat-resistant up to 1200 °C), enabling real-time visual observation without compromising thermal integrity or optical clarity.
• Programmable ignition duration from 1 to 12 seconds in 0.1-second increments, fully compliant with variable exposure requirements across CA TB 117 Section A (12 s) and Section B (1 s), CPAI 84 (4 s), and FAA FAR 25 Appendix F (12 s).
• Dedicated fixture set—including ASTM D6413-compliant clamp bars, CPAI 84 wall-mount brackets, and FAA-specified rigid support frames—enables rapid reconfiguration for cross-standard testing without hardware modification.
• Integrated high-resolution digital timer with ±0.05 s accuracy and automatic start/stop triggers synchronized to burner motion and flame detection circuitry.
• Thermally isolated base plate with removable ash collection tray and standardized ventilation duct interface (100 mm diameter) meeting ASTM D5025 airflow specifications.

Sample Compatibility & Compliance

The VF-2 accommodates specimens ranging from 50 mm × 356 mm (ASTM D6413) to 250 mm × 250 mm (CPAI 84 Top), including woven/nonwoven textiles, polyurethane foams, laminated composites, and coated vinyls. All test configurations adhere to GLP-aligned documentation practices, with audit-ready event logs capturing burner position, ignition timestamp, flame-off signal, and operator ID. The system satisfies full traceability requirements under FAA AC 20-135B, EASA AMC 20-135, and ISO/IEC 17025:2017 clause 7.8.2 for calibration and performance verification records. Optional NIST-traceable thermocouple validation kits (Type K, Class I) are available for routine thermal profiling per ASTM E2593.

Software & Data Management

The embedded control firmware supports standalone operation via tactile membrane keypad and OLED status display. For laboratory integration, optional Ethernet-enabled data acquisition module provides TCP/IP communication with LIMS or ELN platforms. All test sessions generate timestamped CSV reports containing raw timing data, pass/fail flags per standard clause, operator annotations, and environmental metadata (ambient temperature/humidity logged via integrated sensors). Audit trail functionality complies with FDA 21 CFR Part 11 requirements when paired with user authentication and electronic signature modules.

Applications

• Aerospace interior qualification per Boeing BSS 7230 and Airbus AITM 2.0002 for seat covers, curtain fabrics, and insulation wraps.
• California Proposition 65 and TB 117-2013 compliance verification for residential and commercial upholstered furniture components.
• Campground and recreational vehicle (RV) tent fabric certification under CPAI 84 Wall & Top protocols.
• Third-party certification body testing for UL 1040, NFPA 260, and CAN/ULC-S102.2 fire propagation assessments.
• R&D screening of flame-retardant chemical treatments, intumescent coatings, and inherently non-flammable fiber blends.

FAQ

Does the VF-2 meet FAA TSO-C127a requirements for aircraft interior materials?
Yes—the system implements FAR Part 25 Appendix F Part I test conditions, including burner flame temperature profile verification, specimen mounting geometry, and post-test residue evaluation criteria required for TSO-C127a submission.
Can test data be exported in PDF format with digital signatures?
When configured with the optional compliance software package, reports export as password-protected PDFs embedding SHA-256 hash signatures and timestamp authority validation per RFC 3161.
Is periodic calibration required—and if so, how often?
Burner alignment and timing subsystems require biannual verification using MOTIS-certified calibration fixtures; thermocouple probes must be recalibrated annually per ISO/IEC 17025-accredited service providers.
What electrical and exhaust infrastructure is needed for installation?
Unit operates on 230 VAC ±10%, 50/60 Hz, 16 A; requires dedicated 150 mm diameter exhaust duct with minimum 0.5 m/s face velocity and backpressure ≤25 Pa at the chamber outlet port.
Are replacement sample holders available for legacy standards no longer in active use?
Yes—MOTIS maintains archival tooling for ASTM D2863 (LOI), NFPA 701 (2019), and MIL-STD-2031 fixtures, subject to minimum order quantities and lead time confirmation.