Walk-in Pharmaceutical Stability Testing Chamber – Truelab LHH Series

Overview

The Truelab LHH Series Walk-in Pharmaceutical Stability Testing Chamber is an engineered environmental simulation system designed specifically for long-term, accelerated, and intermediate stability studies of pharmaceutical products in compliance with ICH Q1–Q5 guidelines. It provides precise, reproducible, and validated control of temperature (0–65°C), relative humidity (40–95% RH, extendable to ≤20% RH with integrated dehumidification), and optional photostability conditions (via configurable light panels). Built on a Balanced Temperature and Humidity Control (BTHC) architecture, the chamber eliminates thermal lag and moisture overshoot by synchronizing dual-compressor refrigeration, electric heating, and steam/humidification subsystems—ensuring stable setpoint maintenance over extended durations (weeks to years). Its walk-in configuration (2–250 m³ customizable volume) supports bulk storage of primary packaging, clinical trial batches, and reference standards under GMP-aligned conditions.

Key Features

• BTHC Precision Control: Proprietary balanced modulation of cooling, heating, humidification, and dehumidification ensures ±0.5°C temperature fluctuation and ±3.0% RH uniformity across the entire working volume—even during dynamic ramping (1–2°C/min heating; 0.5–1°C/min cooling).
• Intelligent Touch Interface: 7-inch color TFT LCD touchscreen with bilingual (English/Chinese) navigation, supporting up to 100 programmable test profiles—including step, ramp, soak, and cycling modes—with real-time display of setpoints, actual values, alarms, and historical trends.
• Uniform Air Distribution: Optimized rear-wall air duct design with adjustable multi-directional diffusers guarantees ≤±2.0°C spatial temperature deviation and <±3.0% RH gradient per ICH Q1A(R2) chamber mapping requirements.
• Integrated Safety & Diagnostics: Dual-stage over-temperature/over-humidity cutoffs, door interlock with emergency release, internal UV-C sterilization lamp (254 nm, 600 µW/cm²), and self-diagnostic fault logging—displayed dynamically on-screen with ISO-standard error codes.
• Validation-Ready Architecture: Pre-configured for full 3Q qualification (IQ/OQ/PQ); includes traceable sensor calibration points, audit-trail-capable data logs, and documentation templates aligned with FDA 21 CFR Part 11 and EU Annex 11 expectations.

Sample Compatibility & Compliance

The LHH chamber accommodates diverse pharmaceutical sample formats—including blister packs, vials, syringes, sachets, and secondary cartons—without compromising environmental integrity. Its stainless-steel interior (SUS304), non-porous insulation, and condensate management system prevent microbial ingress and cross-contamination. All operational parameters meet or exceed ICH Q1A(R2), Q5C, and USP stability protocol specifications. Optional photostability modules comply with ICH Q5B and Q1B requirements (cool white fluorescent + near-UV lamps, 0–10,000 lux continuous monitoring via calibrated silicon photodiode). Third-party validation reports from Shanghai Metrology & Testing Institute (CNAS-accredited) are available upon request for regulatory submission support.

Software & Data Management

Data acquisition and archival follow ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available). The embedded controller records timestamped temperature/humidity/light values at user-defined intervals (1 sec–60 min), storing ≥12 months of data internally. Export options include USB flash drive (FAT32), RS-485 network interface (Modbus RTU), and optional PC-based software with curve overlay, statistical summary (mean, SD, max/min), and PDF report generation. Optional Fuji PE-2 digital recorder (IP65-rated) provides redundant, GMP-compliant paperless logging with RS-232/RS-485 output and FDA 21 CFR Part 11–compliant electronic signatures.

Applications

• ICH-compliant long-term stability studies (25°C/60% RH, 30°C/65% RH)
• Accelerated testing (40°C/75% RH) per ICH Q1A(R2)
• Intermediate condition assessment (30°C/65% RH)
• High-humidity stress testing (e.g., 40°C/≥75% RH for hygroscopic APIs)
• Photostability screening (optionally equipped with ICH Q1B-specified light sources)
• Excipient compatibility and packaging interaction studies
• Process validation environmental challenge testing

FAQ

Does the LHH chamber support full 21 CFR Part 11 compliance?
Yes—when paired with optional Fuji PE-2 recorder or Truelab’s validated PC software, it delivers role-based access control, electronic signatures, and immutable audit trails meeting FDA requirements.
Can the chamber be calibrated and qualified for GMP audits?
Absolutely. We provide IQ/OQ/PQ protocols, installation drawings, sensor calibration certificates (NIST-traceable), and chamber mapping reports per ISO 14644-3 and ASTM E2297.
Is remote monitoring and alarm notification available?
Yes—wired Ethernet or GSM-based SMS alert systems notify designated personnel instantly upon deviation, door breach, or system fault.
What is the standard warranty and service coverage?
Standard 24-month parts-and-labor warranty; extended service plans include annual preventive maintenance, recalibration, and 24/7 technical hotline support.
How is humidity controlled below 40% RH?
An optional integrated desiccant-based dehumidification module reduces achievable humidity to ≤20% RH while maintaining temperature stability—critical for low-moisture-content solid dosage forms.