YSEI SHH-SDT-2TA Multi-Chamber Pharmaceutical Stability Testing Chamber

Overview

The YSEI SHH-SDT-2TA Multi-Chamber Pharmaceutical Stability Testing Chamber is an engineered environmental simulation system designed explicitly for ICH Q1–Q5-compliant stability studies in pharmaceutical development, quality assurance, and regulatory submission preparation. It operates on a dual-control principle: independent, programmable temperature and relative humidity regulation per chamber—enabling concurrent execution of long-term (25 °C/60 %RH), accelerated (40 °C/75 %RH), intermediate (30 °C/65 %RH), and stress-condition (e.g., 40 °C/20 %RH for large-volume parenterals) protocols within a single footprint. Each chamber features air-jacketed heating and hermetically sealed compressor-based cooling, ensuring thermal inertia minimization and high reproducibility across extended test durations (≥12 months). The system meets the mechanical and performance requirements of GB/T 10586–2025, USP , and FDA Guidance for Industry on Stability Testing of Drug Substances and Products.

Key Features

• Multi-chamber architecture with fully independent control of temperature and humidity per chamber—no cross-talk or shared sensor interference
• Air-jacketed heating system for rapid, uniform thermal response and minimal overshoot during setpoint transitions
• Compressor-driven refrigeration with adaptive PID logic to maintain stable low-humidity conditions (down to 20 %RH at 40 °C) without condensation risk
• External humidification reservoir enabling continuous operation >120 hours without manual refilling; integrated dry-run protection prevents heater damage
• Double-glazed inner door with anti-fog coating and keyed outer door—minimizes thermal/hygrometric disturbance during visual inspection and ensures sample integrity and access control
• Touchscreen HMI with real-time trend visualization, multi-level user permissions (operator, supervisor, administrator), and audit-trail-enabled parameter modification logging

Sample Compatibility & Compliance

The SHH-SDT-2TA accommodates standard stability storage configurations including open trays, sealed aluminum foil-wrapped vials, blister-packed tablets, and IV bags mounted on dedicated racks. Its chamber geometry supports ISO 14644-1 Class 8 cleanroom-compatible placement when installed in controlled environments. Regulatory alignment includes full traceability to ICH Q1A(R3), Q1B, Q1C, Q5C, and Q5D; compliance with FDA 21 CFR Part 11 for electronic records and signatures (via optional validation package); and adherence to GLP/GMP Annex 15 requirements for qualification (IQ/OQ). All firmware and controller logic are validated per GAMP 5 principles, with documented risk assessments for humidity sensor drift, compressor duty cycle variance, and power interruption recovery.

Software & Data Management

Data integrity is maintained through triple-redundant recording: (1) internal 64 MB circular buffer storing setpoints, measured values, timestamps, and alarm events at user-configurable intervals (1 min minimum); (2) removable SD card export supporting CSV/Excel-compatible formats with SHA-256 hash verification; (3) real-time RS485 Modbus RTU output to SCADA or LIMS systems. Optional YSEI CloudLink software enables remote monitoring and configuration via TLS 1.2-secured web interface—supporting up to 30 units per gateway with geotagged event notifications. All data logs include digital signatures, operator ID stamps, and version-controlled firmware metadata to satisfy FDA 21 CFR Part 11 §11.10(a) and EU Annex 11 requirements.

Applications

• ICH-compliant long-term, accelerated, and stress testing of APIs and finished dosage forms
• Photostability pre-screening when integrated with optional ICH Q1B-compliant light cabinets
• Stability protocol development for biologics requiring low-temperature/high-humidity mapping (e.g., 2–8 °C/75 %RH)
• Reference standard storage under defined climatic zones (Zone IVb: 30 °C/75 %RH)
• Academic research in formulation science, excipient compatibility, and degradation kinetics modeling
• QC/QA batch release support for shelf-life assignment and retest date determination

FAQ

Does the SHH-SDT-2TA support 21 CFR Part 11-compliant electronic signatures?

Yes—when deployed with the optional IQ/OQ validation package and YSEI CloudLink software, it provides role-based e-signature workflows, biometric or token-based authentication, and immutable audit trails meeting §11.200 and §11.300 requirements.
Can humidity be stabilized at 20% RH while maintaining 40°C?

Yes—the external water tank, compressor dehumidification mode, and air-jacket thermal decoupling enable precise low-RH control without condensation or sensor saturation.
What is the maximum data retention period with 1-minute sampling?

The internal 64 MB memory supports ~10 years of continuous logging at 1-minute intervals; SD card capacity is user-selectable (up to 128 GB).
Is remote firmware update supported?

Firmware updates require local USB or SD card upload per GxP cybersecurity policy—no over-the-air (OTA) updates are permitted to preserve system integrity.
How is temperature uniformity verified across chambers?

Uniformity is validated using 9-point thermocouple mapping per ISO 16770:2021 Annex B, with results documented in the OQ report and traceable to NIST-calibrated references.