Labonce Labonce-520GS-FC Two-Chamber Drug Stability Testing Chamber

Overview

The Labonce Labonce-520GS-FC Two-Chamber Drug Stability Testing Chamber is an engineered environmental simulation system designed specifically for long-term and accelerated stability studies of pharmaceutical products in compliance with ICH Q1–Q5 guidelines and the Chinese Pharmacopoeia (2020 Edition). Unlike single- or three-chamber configurations, this two-chamber architecture separates temperature-humidity conditioning from photostability exposure—enabling concurrent yet independent control of thermal/hygrometric parameters in one chamber while maintaining strict light-exposure conditions in the other. The system operates on a dual-loop PID control architecture with high-fidelity feedback from capacitive humidity sensors and platinum resistance thermometers (PT100), ensuring stable maintenance of test environments across extended durations (≥6 months) required for bracketing and matrixing study designs. Its structural design supports GMP and cGMP-regulated laboratories through hardware-enforced access control, audit-trail-capable data logging, and fail-safe thermal and mechanical protection systems.

Key Features

• Independent dual-chamber configuration: Chamber A (temperature + humidity control only) and Chamber B (temperature + humidity + visible + near-UV irradiation), eliminating cross-contamination of light-sensitive and non-light-sensitive samples.
• High-efficiency refrigeration system featuring imported hermetic variable-frequency compressors—reducing energy consumption and water usage by over 50% compared to fixed-speed alternatives.
• Triple-tier user permission management with role-based authentication (Administrator, Supervisor, Operator), enforced via username/password login and session timeout protocols.
• Full audit trail functionality compliant with FDA 21 CFR Part 11 requirements: all parameter changes, alarm events, door openings, and calibration actions are timestamped, user-identified, and stored with immutable file integrity (exportable via USB in read-only format).
• 7-inch full-color programmable touchscreen controller with real-time display of compressor output ratio, humidity sensor status, and deviation alarms.
• Robust thermal insulation using high-density polyurethane foam (≥30 kg/m³ density) with seamless foaming technique—achieving thermal conductivity ≤0.022 W/(m·K) and minimizing moisture migration between chambers.
• Interior constructed entirely from electropolished AISI 304 stainless steel (mirror finish); exterior coated with anti-corrosive epoxy-polyester powder; no volatile organic compound (VOC) emission sources present.
• Integrated safety architecture including independent over-temperature cutoff, refrigerant high-pressure/overheat protection, low-water-level detection, dry-run prevention for humidifier, and redundant fan failure monitoring.

Sample Compatibility & Compliance

The Labonce-520GS-FC accommodates standard pharmaceutical packaging formats—including blister packs, HDPE bottles, glass vials, and aluminum tubes—within its 250 L working volume (internal dimensions: 600 × 500 × 830 mm). Its environmental control fidelity meets the precision thresholds specified in ICH Q1A(R2) for long-term (25°C ± 2°C / 60% RH ± 5% RH) and accelerated (40°C ± 2°C / 75% RH ± 5% RH) testing conditions. Temperature uniformity across the working space is validated per ISO 14644-3:2019 Annex D protocols; humidity homogeneity is verified using calibrated hygrometers at nine spatial points. The chamber is pre-qualified for installation in GLP/GMP environments and supports IQ/OQ/PQ documentation packages aligned with EU Annex 15 and USP .

Software & Data Management

Data acquisition is performed at 10-second intervals and retained locally for ≥12 months in encrypted binary format. The embedded controller provides real-time graphing of temperature and relative humidity trends, with configurable alarm thresholds (e.g., deviation > ±1.0°C or > ±3% RH for >5 minutes). Historical records—including setpoint logs, alarm history, and operator activity—are exportable as CSV or PDF files via USB port. Optional Ethernet connectivity enables integration into centralized Laboratory Information Management Systems (LIMS) via Modbus TCP or OPC UA protocols. All electronic records include digital signatures, tamper-evident hashing (SHA-256), and time synchronization with NTP servers—fulfilling ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).

Applications

• ICH-compliant stability protocols for new drug applications (NDAs), abbreviated new drug applications (ANDAs), and marketing authorization applications (MAAs).
• Photostability testing per ICH Q5C and Chinese Pharmacopoeia General Chapter 9001: evaluation of degradation pathways under controlled visible (100–6000 lux) and near-UV (0.84–1.0 W/m²) irradiance.
• Accelerated aging studies for packaging integrity assessment, including permeation rate modeling for barrier materials.
• Reference standard storage under defined climatic zones (Zone IVa: 30°C/65% RH; Zone IVb: 30°C/75% RH).
• Forced degradation studies supporting analytical method development and validation.

FAQ

Does the Labonce-520GS-FC support ICH Q1B photostability testing requirements?
Yes—the system includes calibrated visible-light and near-UV irradiance sensors, with automatic logging of cumulative exposure (lux·hr and W·hr/m²), meeting the minimum thresholds of ≥1.2×10⁶ lux·hr and ≥200 W·hr/m² respectively.
Is the audit trail compliant with 21 CFR Part 11?
Yes—all electronic records include user identification, timestamps, action descriptions, and cryptographic integrity checks; exported files retain immutability and are compatible with Part 11–compliant review workflows.
What is the maximum allowable ambient temperature for operation?
The unit is rated for ambient conditions between +5°C and +35°C; operation outside this range may compromise humidity control accuracy and compressor lifespan.
Can the chamber be validated for GMP use?
Yes—factory-installed sensors are NIST-traceable, and the system ships with a comprehensive qualification protocol package (IQ/OQ templates, calibration certificates, and uncertainty budgets) suitable for regulatory submission.
How many shelves are included, and are they adjustable?
Three stainless-steel shelves are supplied as standard (7 total positions), all fully adjustable in height and load-rated to 25 kg per shelf.