GBPI GB-ZR10 Flame Resistance Tester for Medical Face Masks

Overview

The GBPI GB-ZR10 Flame Resistance Tester is a dedicated benchtop instrument engineered for objective, repeatable assessment of flame propagation behavior in medical face masks and surgical mask materials under standardized thermal exposure conditions. It operates on the principle of controlled horizontal flame impingement—where a calibrated propane-fueled flame is applied to the lower edge of a mask mounted on an anatomically proportioned metal headform, which traverses the flame zone at a precisely regulated linear velocity of (60 ± 5) mm/s. This methodology directly implements the test geometry and thermal boundary conditions specified in key regulatory standards including GB 19083–2010 (Technical Requirements for Medical Protective Masks), YY 0469–2011 (Surgical Masks), GB 2626–2006 (Respiratory Protective Devices), and the superseded GB 19083–2003. The system measures two critical fire performance parameters: afterflame time (duration of flaming combustion following flame removal) and afterglow time (duration of glowing combustion without flame), both recorded with ±0.1 s resolution and traceable to internal real-time clock calibration.

Key Features

• Industrial-grade 7-inch capacitive touchscreen HMI with intuitive workflow navigation, real-time parameter monitoring, and on-device result review.
• Anatomically accurate stainless-steel headform (2–3 mm wall thickness) designed to replicate facial curvature and mechanical tension during wear—ensuring representative sample mounting and flame contact geometry.
• Motorized vertical burner positioning with 30 mm adjustment range, enabling precise alignment to the mask’s lowest edge per standard-specified distance tolerances (20 ± 2 mm).
• Integrated thermocouple probe (K-type) positioned 20 mm above burner tip for continuous flame temperature verification; digital display confirms compliance with (800 ± 50) °C requirement prior to each test cycle.
• Automated flame-on timing, headform motion initiation, and synchronized dual-channel timer activation—eliminating operator-dependent variability in ignition sequence execution.
• Propane/LPG-compatible gas manifold with pressure regulator and leak-tested stainless-steel delivery lines, compliant with ISO 4126-1 for safe laboratory gas handling.
• Embedded non-volatile memory stores full test records—including timestamps, measured times, operator ID, ambient temperature/humidity metadata, and pass/fail determination—formatted for CSV export.

Sample Compatibility & Compliance

The GB-ZR10 accommodates flat-fold, cup-shaped, and duckbill-style medical masks up to 200 mm wide and 180 mm tall when mounted on the standard headform. It supports both single-use disposable masks and reusable fabric-based variants, provided they conform to dimensional constraints of the clamping mechanism. All operational parameters—including flame geometry, thermal profile, motion dynamics, and measurement resolution—are validated against the metrological requirements of GB 19083–2010 Annex A and YY 0469–2011 Clause 5.10. The instrument’s design facilitates audit readiness for GLP-compliant laboratories: electronic records include immutable timestamps, user authentication logs, and configurable audit trails meeting principles outlined in ISO/IEC 17025:2017 Clause 7.11.

Software & Data Management

No external PC or proprietary software installation is required. All control logic, data acquisition, and reporting functions reside within the embedded Linux-based controller. Test results are stored locally in encrypted binary format and exportable via USB flash drive as ISO 8601–compliant CSV files containing column headers: “Test_ID”, “Date_UTC”, “Operator”, “Mask_Model”, “Afterflame_s”, “Afterglow_s”, “Flame_Temp_C”, “Ambient_T_C”, “Ambient_RH_%”, “Pass_Fail”. Exported datasets retain full traceability for regulatory submission or internal quality review. Optional firmware updates are delivered via signed .bin files to ensure integrity and version control.

Applications

• Pre-market validation of medical mask designs against mandatory flame resistance thresholds (e.g., afterflame time ≤ 5 s per GB 19083–2010).
• In-process quality control during high-volume mask manufacturing to detect batch-level deviations in nonwoven meltblown layer composition or flame-retardant finish application.
• Comparative evaluation of alternative filter media (e.g., electrospun nanofibers, coated spunbond) under identical thermal challenge conditions.
• Supporting technical documentation for CE marking (under MDR 2017/745 Annex I General Safety and Performance Requirements) and FDA 510(k) submissions requiring flammability evidence.
• Academic research into thermal degradation kinetics of polypropylene-based mask substrates under defined radiant heat flux profiles.

FAQ

Does the GB-ZR10 comply with ASTM F2100 or EN 14683 for flammability?
The GB-ZR10 implements Chinese national standards (GB/YY) exclusively. While ASTM F2100–22 and EN 14683:2019 do not specify flame resistance requirements, this instrument is not configured for those frameworks.
Can the headform be replaced with custom anthropometric geometries?
No—the headform is fixed per GB 19083–2010 dimensional specifications and is not user-replaceable. Modifications would invalidate conformance to referenced standards.
Is calibration certification included with shipment?
Yes—a factory-issued calibration report (traceable to CNAS-accredited reference standards) is supplied, covering timer accuracy, flame temperature verification, and linear motion speed verification.
What safety interlocks are implemented?
The system features hardware-enforced flame shutdown upon door opening, gas flow cutoff if flame-out is detected, and thermal cutoff at 120 °C ambient sensor threshold.
How often does the thermocouple require recalibration?
Annual verification against a NIST-traceable dry-block calibrator is recommended; GBPI provides certified calibration services under ISO/IEC 17025.