Drick DRK-07B Medical Face Mask Flame Resistance Tester

Overview

The Drick DRK-07B Medical Face Mask Flame Resistance Tester is a precision-engineered benchtop instrument designed to evaluate the flame resistance performance of medical and personal protective face masks in strict compliance with international and national regulatory standards. It operates on the principle of controlled vertical flame exposure—where a standardized flame impinges upon a horizontally mounted mask specimen secured over an anatomically accurate headform—and measures critical fire response parameters including afterflame time, afterglow time, and char length. The system implements ASTM D6413 / ISO 6941-based test methodology adapted for respiratory protection devices, with hardware-level alignment to GB 2626–2019 (Respiratory Protective Devices), GB 19083–2010 (Technical Requirements for Medical Protective Masks), GB 19082–2009 (Medical Disposable Protective Gowns), GB 32610–2016 (Technical Specifications for Daily Protective Masks), YY 0469–2011 (Surgical Masks), and YY/T 0969–2013 (Single-use Medical Masks). It also supports EN 149:2001+A1:2009 (Respiratory Protective Devices – Filtering Half Masks Against Particles) Annex B flame resistance verification protocols.

Key Features

• True 1:1 anatomical aluminum headform with surface finish optimized for consistent specimen mounting and thermal boundary condition repeatability
• Dual-core embedded control architecture: ARM Cortex-M3 microcontroller handles command parsing, data logging, and I/O coordination; FPGA module manages real-time display rendering and timing-critical flame actuation sequences
• Zero-latency boot operation enabled by FPGA-direct TFT initialization—no OS or firmware loading delay
• Motorized vertical adjustment mechanism for burner height calibration (±1 mm resolution), ensuring precise flame tip-to-specimen distance per standard requirements
• Integrated K-type thermocouple probe (1.5 mm diameter) with direct analog signal conditioning for continuous flame temperature monitoring within 750–950 °C range
• Automated headform translation at (60 ± 5) mm/s under closed-loop stepper motor control, synchronized with ignition trigger and digital stopwatch circuitry
• High-resolution 7-inch industrial touchscreen (800 × 480) with RS-232 and TTL serial interfaces for external SCADA integration or lab network synchronization
• Onboard 1 GB non-volatile memory stores ≥10,000 test records with timestamp, operator ID, ambient conditions, and pass/fail flags

Sample Compatibility & Compliance

The DRK-07B accommodates flat-fold, cup-shaped, and duckbill-style medical masks up to 200 mm × 180 mm. Specimens are clamped onto the headform using standardized stainless-steel retaining rings conforming to GB/T 2912.1 dimensional tolerances. All mechanical motion profiles, flame dwell durations (typically 10 s ± 0.5 s), and post-ignition observation windows adhere strictly to Clause 6.11 of GB 19083–2010 and Section 7.3 of EN 149:2001+A1:2009. The instrument’s measurement uncertainty budget has been validated against NIST-traceable thermal reference sources and is documented in its Factory Calibration Certificate (ISO/IEC 17025–compliant calibration report available upon request). It supports audit-ready operation under GLP and GMP environments through configurable user access levels and electronic signature capability (optional firmware upgrade).

Software & Data Management

Test execution, parameter configuration, and result review are managed via the built-in HMI without external PC dependency. All test logs include metadata fields: test ID, standard reference, ambient temperature/humidity (via optional external sensor input), operator code, and calibration due date. Data export is supported via USB mass storage mode (FAT32 formatted drive) in CSV format compliant with LIMS ingestion schemas. Optional PC-based software (DRK-DataLink v3.x) enables automated report generation per ISO/IEC 17025 clause 7.8.3, including statistical process control charts (X̄–R charts) for longitudinal performance trending. Audit trail functionality meets FDA 21 CFR Part 11 requirements when deployed with Windows-based validation packages.

Applications

• Quality assurance laboratories validating incoming raw materials (nonwoven meltblown, spunbond, and electret layers)
• Regulatory submission support for NMPA Class II/III medical device registration dossiers
• In-process testing during mask production line qualification (IQ/OQ/PQ)
• Third-party certification bodies performing CB Scheme or CE marking assessments per EN 14683 and EN 149
• Research institutions studying flame-retardant additive efficacy in polypropylene fiber matrices
• Government metrology institutes conducting inter-laboratory comparison studies under APMP or ILAC MRA frameworks

FAQ

What flame fuel types are compatible with the DRK-07B?
Propane and liquefied petroleum gas (LPG) are supported; natural gas is not recommended due to inconsistent Wobbe index and flame stability issues.
Does the system include traceable calibration documentation?
Yes—each unit ships with a factory calibration certificate traceable to CNAS-accredited laboratories (certificate number printed on rear panel label).
Can the DRK-07B be integrated into a centralized laboratory information management system (LIMS)?
Yes—via RS-232 ASCII protocol or optional Ethernet-to-serial gateway; full command set and data schema provided in the Technical Integration Manual.
Is operator training included with purchase?
One-day on-site or virtual application training is included; advanced metrology and audit-readiness workshops are available as billable add-ons.
What maintenance intervals are recommended for long-term reliability?
Burner nozzle inspection every 200 tests; thermocouple verification quarterly; headform surface cleaning after each test batch using isopropyl alcohol and lint-free wipes.