YSEI SHH-500SD-2T Drug Stability Testing Chamber

Overview

The YSEI SHH-500SD-2T Drug Stability Testing Chamber is an engineered environmental simulation system designed specifically for pharmaceutical stability studies in compliance with ICH Q1–Q5 guidelines, USP , FDA 21 CFR Part 11, and Chinese Pharmacopoeia (ChP) requirements. It implements precision-controlled temperature and humidity conditioning to execute long-term (e.g., 25°C/60% RH), accelerated (e.g., 40°C/75% RH), and intermediate (e.g., 30°C/65% RH) stability protocols. The chamber utilizes dual independent PID-controlled refrigeration and humidification circuits, coupled with high-stability PT100 sensor arrays and forced-air convection to ensure spatial uniformity (±0.5°C temperature deviation, ±3% RH deviation across working volume per ISO 14644-1 Class 8 ambient conditions). Its architecture supports GxP-aligned data integrity through hardware-enforced audit trails, non-volatile memory, and deterministic real-time clock synchronization—critical for regulatory submissions and inspection readiness.

Key Features

• Touchscreen controller with 64 MB internal cyclic buffer and removable SD card slot; stores setpoints, actual values, timestamps, and event logs at user-defined intervals (1 min to 24 h)
• Electronic data recording compliant with ALCOA+ principles: time-stamped, attributable, legible, contemporaneous, original, accurate, complete, consistent, enduring, and available
• USB 2.0 and SD card interfaces for secure, encrypted export of raw datasets in CSV or PDF format; supports electronic signature validation via optional YSEI PharmaSoft™ module
• RS485 Modbus RTU interface enabling centralized monitoring and control of up to 30 units from a single host PC running YSEI SimS™ software
• Remote diagnostics and parameter adjustment over LAN/WAN using TLS-secured SimS™ web client—no local software installation required
• Dual-door structure: outer door with keyed mechanical lock (ISO 14644-1 compliant access control); inner tempered glass door minimizing thermal/hygrometric disturbance during observation
• Energy-efficient design meeting GB/T 10586–2025 thermal performance criteria; average power consumption ≤1.8 kW under 40°C/75% RH continuous operation
• Acoustic optimization: noise emission <52 dB(A) at 1 m distance, suitable for shared laboratory environments

Sample Compatibility & Compliance

The SHH-500SD-2T accommodates standard stability storage configurations including open trays, sealed blister packs, vials, ampoules, and large-volume parenterals (LVPs) on adjustable stainless-steel shelves. Its interior volume (500 L net) and airflow geometry support homogeneous conditioning for heterogeneous sample loads per ICH Q5C recommendations. All operational firmware and data management modules are validated against FDA 21 CFR Part 11 Annex 11 (EU GMP) requirements, including role-based access control, electronic signature enforcement, and immutable audit trail generation. Pre-validated IQ/OQ documentation packages—including protocol templates, test scripts, and summary reports—are provided for immediate use in GMP-compliant facilities.

Software & Data Management

YSEI PharmaSoft™ (v3.2+) delivers full lifecycle data governance: automated calibration certificate import, configurable alarm thresholds (temperature, humidity, power failure), SMS/email alerting via GSM gateway integration, and automated report generation (PDF/Excel) per USP analytical instrument qualification standards. Data records include cryptographic hash verification to prevent tampering; all logs are stored with SHA-256 checksums and time-stamped by NTP-synchronized RTC. Software supports 21 CFR Part 11-compliant electronic signatures with biometric or PKI token authentication options. Raw data archives retain full metadata (operator ID, instrument ID, environmental context) for traceability in FDA or EMA inspections.

Applications

• ICH Q1A(R2) long-term and accelerated stability testing of APIs and finished dosage forms
• ICH Q5C biopharmaceutical stability assessment under low-humidity conditions (e.g., 40°C/20% RH for lyophilized products)
• Photostability screening when integrated with optional ICH Q1B-compliant light sources
• Real-time shelf-life determination for registration dossiers (IND/NDA/MAA)
• Retrospective stability retesting following process changes or facility transfers
• Environmental stress testing for packaging compatibility (e.g., moisture barrier validation)

FAQ

Does the SHH-500SD-2T meet ICH Q1E evaluation requirements for statistical analysis of stability data?
Yes—the exported CSV datasets are structured for direct import into JMP, Minitab, or Phoenix WinNonlin for linear regression, ANOVA, and confidence interval estimation per ICH Q1E guidance.
Is the internal data logger compliant with 21 CFR Part 11 Subpart B for electronic records?
Yes—hardware-level write-protection, automatic digital signature embedding, and immutable audit trail logging satisfy Subpart B §11.10 and §11.30 requirements.
Can the chamber operate continuously at 40°C/20% RH without condensation risk?
Yes—its dedicated dehumidification subsystem (rotary desiccant wheel + auxiliary cooling coil) maintains precise low-RH setpoints without surface condensation, validated per ASTM E2051–21.
What validation support is included with purchase?
Full IQ/OQ documentation package, pre-executed test scripts, URS alignment matrix, and on-site OQ execution service (optional add-on).
How is power failure recovery handled?
Non-volatile FRAM memory retains all configuration and last 72 hours of logged data; upon restart, the system resumes operation at prior setpoints with seamless timestamp continuity.