Storage Conditions ICH Conditions We Build To
Canada sits in Climatic Zone I/II, but products intended for global export often require Zone III, IVa, and IVb conditions as well. We build any of the following, individually or as a multi-chamber suite on a shared monitoring platform.
| Study Type | Condition | Application |
|---|---|---|
| Long-Term | 25°C ± 2°C / 60% RH ± 5% | Standard long-term condition for Canadian (Zone I/II) and US submissions |
| Intermediate | 30°C ± 2°C / 65% RH ± 5% | Triggered by significant change during accelerated testing |
| Accelerated | 40°C ± 2°C / 75% RH ± 5% | Six-month studies supporting shelf-life extrapolation |
| Zone IVB | 30°C ± 2°C / 75% RH ± 5% | Hot and very humid export markets |
| Refrigerated | 5°C ± 3°C | Products stored between 2°C and 8°C, including biologics |
| Frozen | −20°C ± 5°C | Sub-zero long-term storage |
| Photostability | ICH Q1B | Controlled visible and near-UV exposure for light sensitivity |
- Global ICH Guideline: ICH Q1A(R2) Guideline: Stability Testing of New Drug Substances and Products (PDF)
- US FDA Official Guidance: FDA Q1A(R2) Stability Testing Guidance
- European Medicines Agency (EMA): EMA Scientific Guideline on ICH Q1A (R2)
Pharmaceutical Stability Chamber Features & Qualification Documentation
Redundant Refrigeration
StandardN+1 refrigeration circuits with automatic changeover and lead-lag alternation, so a compressor failure never becomes a temperature excursion mid-study.
Temperature & Humidity Control
StandardMicroprocessor control holding every ICH Q1A(R2) storage condition, from 25°C/60% RH long-term through 40°C/75% RH accelerated testing.
Calibrated Sensors
StandardTemperature and relative humidity sensors calibrated against traceable standards, with certificates supplied in the qualification turnover package.
Environmental Monitoring
StandardContinuous monitoring independent of the control system, so the instrument recording your stability data is never the instrument being judged by it.
Alarms & Escalation
StandardLocal and remote alarming with escalation to phone or email, plus battery-backed recording that continues through a facility power outage.
Uniformity Mapping
StandardTemperature and humidity mapping studies run empty and loaded across the full working volume, identifying worst-case locations for permanent sensor placement.
IQ & OQ Protocols
StandardInstallation and operational qualification protocols with executed results, covering setpoint control, alarm testing, door-open recovery and power-failure response.
Documentation Package
StandardStamped engineering drawings, equipment manuals, calibration certificates, commissioning records and mapping reports handed over as one audit-ready document set.
Performance Qualification
OptionalPQ execution under real product loading, plus periodic requalification mapping after any change to racking layout, mechanical plant or control strategy.
Data Integrity Configuration
OptionalAudit trails, user access control and electronic records configured to 21 CFR Part 11 and EU GMP Annex 11 expectations for GMP stability testing.
Vestibule or Air Curtain
OptionalAn entry vestibule or air curtain limiting the humidity and temperature disturbance of a sample pull, shortening recovery time after each door opening.
Emergency Power Tie-In
OptionalGenerator or UPS connection coordinated with your facility so the chamber sits on the essential power branch and rides through an outage.
Custom Racking & Shelving
OptionalAdjustable shelving, mobile racking or pallet-height configurations designed around your sample pull schedule and airflow uniformity requirements.
Maintenance & Calibration
OptionalPreventive maintenance, sensor recalibration and requalification service agreements covering the chamber through its full operating life, including after warranty.
Stability Chamber Applications Across Regulated Industries
Stability storage is a regulated activity with a narrow set of users. Every chamber we build is designed around the specific ICH storage conditions, sample volumes and qualification requirements of the programme it serves.
Pharmaceutical Manufacturing
Long-term, intermediate and accelerated stability storage supporting shelf-life determination, retest periods and post-approval commitment studies for solid dose, liquid and sterile products.
Biotech & Biologics
Refrigerated and frozen stability storage for biologics, vaccines and cell-based therapies, where cold chain integrity and its documented evidence are inseparable from the product itself.
Nutraceuticals Industries
Shelf-life substantiation for NHP site licence submissions & supplement expiry dating, using the same ICH-aligned storage conditions and mapping evidence as pharmaceutical studies.
Testing Laboratories
Multi-condition stability suites serving many clients at once, with segregated storage, per-client pull schedules and monitoring records built to survive third-party GMP audit
Medical Devices
Accelerated and real-time ageing studies supporting shelf-life claims for sterile barrier systems, packaging materials and device components under controlled temperature and humidity.
Compounding Pharmacy
Beyond-use dating support and controlled storage aligned with USP and NAPRA expectations for compounded sterile and non-sterile preparations.
Why Choose ACH for Your Stability Chamber Project
We believe that our role is essential for your business, your experience with ACH matters for us, hence, we do care about every single detail throughout the value chain of service delivery.
From the moment that we get notified by your enquiry till the delivery of your project outcomes our continuously improving systems are tailored to serve you.
Stability Chamber FAQs: Conditions, Qualification & Compliance
Storage Conditions & Compliance
The most common long-term condition is 25°C ± 2°C at 60% RH ± 5%, with accelerated studies at 40°C ± 2°C and 75% RH ± 5%. Intermediate studies use 30°C at 65% RH. Refrigerated storage is held at 5°C ± 3°C and frozen storage at −20°C ± 5°C.
Canada falls within Climatic Zone I/II, where 25°C at 60% RH is the standard long-term storage condition. Products registered for export to hotter and more humid markets often need Zone III, IVa or IVb conditions in addition, with Zone IVb requiring 30°C at 75% RH.
ICH Q1B evaluates how a drug substance, formulation or primary package responds to light exposure. Samples are exposed to a minimum of 1.2 million lux hours of visible light and 200 watt hours per square metre of near ultraviolet, using either Option 1 or Option 2 light source configurations.
Engineering & Performance
A cold room controls temperature. A stability chamber controls temperature and humidity together, holds both to tighter tolerances across the whole working volume, and carries the mapping, qualification and audit-trail documentation required for regulated shelf-life testing.
Usually when sample volume outgrows the cabinets you have room for, when qualifying and calibrating many separate units becomes a burden on your quality team, or when a single-compressor failure taking out a set of studies becomes an unacceptable risk.
We consider it essential. A study can run for thirty-six months and cannot be recreated if the data is lost. A single refrigeration failure over a weekend can cause an excursion that triggers a deviation investigation and may invalidate the study.
Qualification & Documentation
A grid of calibrated sensors is placed throughout the working volume and records continuously through a period long enough to capture full control cycles. Studies are run empty and loaded, since product mass and racking change how the chamber behaves. The results identify worst-case locations, which become the permanent monitoring positions.
A complete turnover package: stamped engineering drawings, equipment manuals, calibration certificates traceable to recognised standards, commissioning records, IQ and OQ protocols with executed results, mapping reports for empty and loaded conditions, and monitoring documentation supporting 21 CFR Part 11 and EU GMP Annex 11 expectations.
A single chamber holds one condition at a time, and changing setpoints mid-study is not acceptable practice. Facilities needing several conditions are usually best served by a suite of adjacent chambers sharing a common mechanical plant, monitoring platform and alarm path.