SPI 45-Degree Combustion Tester by MOTIS

Overview

The MOTIS SPI 45-Degree Combustion Tester is a precision-engineered instrument designed to evaluate the flame propagation behavior of non-rigid, unsupported polyethylene (PE) plastic films under standardized ignition conditions. It operates in strict accordance with the U.S. Flammable Fabrics Act (FFA) and implements the test methodology specified in 16 CFR Part 1611 — the mandatory flammability standard enforced by the U.S. Consumer Product Safety Commission (CPSC) for vinyl plastic film used in consumer products. The tester positions specimens at a fixed 45-degree angle relative to the horizontal plane, replicating real-world orientation scenarios where thin films may drape or hang during incidental exposure to ignition sources. Flame impingement is delivered via a calibrated 22-gauge needle burner, generating a defined propane/air diffusion flame whose length is manually adjustable to meet regulatory tolerances. This geometry ensures consistent thermal flux distribution across the specimen surface, enabling high reproducibility in time-to-ignition and burn-length measurements.

Key Features

• Stainless steel test chamber with integrated tempered glass observation window for safe, real-time visual monitoring of combustion dynamics
• Adjustable 22-gauge needle burner assembly compliant with 16 CFR Part 1611 dimensional and flame-height specifications
• Electromechanical micro-switch activation system for precise flame contact initiation
• Digital timer with ±0.01 s resolution for automated recording of both ignition time (time from flame application to onset of sustained flaming) and total burn time
• Standardized stainless steel specimen holder clamps ensuring repeatable sample positioning and edge alignment
• Integrated ventilation control to maintain ambient airflow conditions within ASTM E136-compliant limits during testing

Sample Compatibility & Compliance

The SPI 45-Degree Combustion Tester is validated exclusively for non-rigid, unsupported polyethylene-based films—including transparent, translucent, and opaque variants—with thicknesses typically ranging from 0.01 mm to 0.25 mm. It is not intended for rigid substrates, laminated composites, or materials containing flame retardant additives that alter thermal decomposition pathways outside the scope of 16 CFR Part 1611. All operational procedures, calibration checks, and performance verification protocols align with CPSC’s official test method guidance and are compatible with laboratory quality management systems operating under ISO/IEC 17025 requirements. Test reports generated using this instrument satisfy documentation traceability mandates for CPSC submission and third-party certification bodies.

Software & Data Management

This model operates as a standalone hardware platform without embedded firmware or proprietary software. All timing and event logging are performed via discrete industrial-grade digital timers with manual reset functionality. Data output consists of raw timestamped values (ignition time, burn time, pass/fail status per specimen), recorded directly into laboratory notebooks or LIMS-compatible spreadsheets. While no software interface is provided, the instrument supports full audit trail compliance when integrated into GLP or GMP environments through documented operator logs, calibration records (burner height verification, timer calibration certificate), and routine performance qualification (PQ) checks conducted per internal SOPs aligned with FDA 21 CFR Part 11 principles for manual data entry systems.

Applications

• Pre-market flammability screening of PE-based packaging films, garment liners, and disposable medical drapes
• Quality control testing in manufacturing facilities supplying CPSC-regulated consumer goods to North American markets
• Regulatory validation support for ASTM D6413 / ISO 6941 comparative studies (when adapted with appropriate mounting fixtures)
• Failure analysis of batch deviations in film extrusion processes affecting melt viscosity and char formation kinetics
• Technical due diligence during supplier qualification audits requiring evidence of conformance to 16 CFR Part 1611

FAQ

Does the SPI 45-degree tester comply with current CPSC enforcement policy?
Yes — the instrument implements the exact geometric configuration, burner specification, and procedural sequence outlined in the latest revision of 16 CFR Part 1611 (effective since 1972, reaffirmed in 2022).
Can it be used for testing fabrics or coated textiles?
No — this device is specifically engineered for unsupported PE films only; it does not meet the specimen support, tensioning, or flame exposure criteria required for textile standards such as 16 CFR Part 1610 or ISO 6941.
Is calibration certification included with purchase?
MOTIS provides a factory calibration verification report covering timer accuracy (NIST-traceable stopwatch standard) and burner alignment; annual recalibration services are available through authorized service partners in APAC and North America.
What safety interlocks are built into the chamber?
The unit features a mechanical door-interlock switch that deactivates the burner solenoid valve when the observation window is opened, preventing accidental flame exposure during specimen loading.
Are replacement parts such as burners or clamps available separately?
Yes — MOTIS maintains an inventory of certified spare components including 22-gauge stainless steel burners, calibrated micro-switch assemblies, and ISO-standard specimen clamps, all supplied with material certifications.