MOTIS SFT Children’s Sleeping Bag Flammability Tester
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | SFT |
| Pricing | Available Upon Request |
Overview
The MOTIS SFT Children’s Sleeping Bag Flammability Tester is a precision-engineered combustion test chamber designed specifically for evaluating the flame resistance of children’s sleeping bags in accordance with internationally recognized textile flammability standards. It operates on the principle of controlled vertical flame exposure using a calibrated Tirrell burner, enabling quantitative measurement of two critical safety parameters: flame propagation time (T) and char length (D). The device subjects vertically mounted fabric specimens to a standardized open flame under defined gas flow, orientation, and environmental conditions—mimicking real-world ignition scenarios while ensuring repeatability and regulatory traceability. Its architecture supports both manual stopwatch-based operation and automated timing integration (optional), making it suitable for routine QC laboratories as well as accredited testing facilities requiring documented compliance with ASTM F1955 and CPAI-75.
Key Features
- Robust stainless steel test chamber with integrated tempered glass observation window for real-time visual monitoring and operator safety
- Stainless steel structural support frame engineered for long-term dimensional stability and thermal resistance
- U-shaped specimen holder assembly conforming to ASTM F1955 geometry requirements for consistent sample positioning
- UL-listed Tirrell burner equipped with precision-machined nozzle: 0.90 ± 0.03 mm orifice diameter and 1.60 ± 0.05 mm nozzle length
- Burner tube specifications: 10 mm outer diameter, 38 mm total length, compatible with propane or butane fuel supply systems
- Adjustable flame height control via calibrated rotameter, enabling precise regulation of heat flux intensity (typically 1.5–2.0 cm flame height per standard protocols)
- Included accessories: Two calibrated brass weights (for specimen tensioning), one spool of #50 mercerized cotton thread (for flame timing reference lines), and mounting hardware compliant with ASTM fixture tolerances
Sample Compatibility & Compliance
The SFT accommodates flat textile specimens up to 150 mm × 50 mm, cut from actual sleeping bag materials—including quilted layers, synthetic fills, and laminated membranes—without requiring disassembly beyond standard seam removal. Specimens are mounted vertically with uniform tension applied via included weights to simulate realistic drape behavior during ignition. The system fully satisfies the physical configuration, burner calibration, and procedural requirements of ASTM F1955 “Standard Specification for Flame Resistance of Children’s Sleepwear Fabrics” and CPAI-75 “Flame Resistance of Camping Tent Fabrics”. While not certified for ISO 6941 or EN 1103, its mechanical design allows adaptation for comparative testing under those frameworks with minor procedural adjustments and third-party verification.
Software & Data Management
The base SFT model operates in manual mode with analog timing; however, optional digital upgrade kits support USB-connected electronic timers with timestamped data logging (CSV export). All test records—including specimen ID, ambient temperature/humidity, gas pressure, flame height setting, measured T (s), and D (mm)—are structured to align with GLP documentation requirements. When integrated with laboratory information management systems (LIMS), audit trails comply with FDA 21 CFR Part 11 principles for electronic records and signatures. Calibration certificates for the rotameter and burner nozzle are provided upon installation, with recommended annual recalibration traceable to NIST standards.
Applications
- Pre-market validation of flame-retardant treatments on polyester, cotton, and blended sleeping bag shells and linings
- Quality assurance screening in manufacturing environments producing ASTM-compliant children’s sleepwear products
- Root cause analysis of non-conforming batches following field incidents or regulatory recalls
- Comparative evaluation of alternative flame-retardant chemistries (e.g., phosphorus-based vs. halogen-free additives)
- Supporting technical documentation for CPSC certification submissions and EU CE marking under Directive 2014/68/EU (PED) where applicable
FAQ
What standards does the SFT directly support out-of-the-box?
ASTM F1955 and CPAI-75 — including all specified burner geometry, specimen mounting, and timing methodology requirements.
Can the SFT be used for adult sleepwear or other textile categories?
Yes, with procedural modifications; however, results may not be accepted for regulatory submission unless validated against the target standard’s scope (e.g., ASTM D1230 for normal clothing).
Is the Tirrell burner supplied with calibration documentation?
Yes — each unit includes a factory calibration report verifying orifice dimensions and flow rate consistency at specified inlet pressures.
Does the system require external gas regulators or ventilation hoods?
A dedicated propane/butane regulator (0–15 psi range) and certified fume extraction hood meeting local occupational safety codes (e.g., OSHA 1910.1200) are mandatory for safe operation.
How often should the rotameter and burner nozzle be recalibrated?
Annually, or after 500 test cycles — whichever occurs first — using traceable reference standards and documented procedures.
