ESPEC Quality is more than a word


Stability Test Chamber (CSH)

Overview of Equipment

Designed for stability test requirements

  • ESPEC stability chamber provides outstanding stability testing performance for manufacturers of pharmaceuticals, cosmetics, food, and personal care products.
  • Accelerated testing at a more severe storage condition than ICH guideline, 40°C ±1°C/75%rh ±1%rh is possible.
  • Frost-free refrigeration for continuous operation
  • One of remote assistance features; an alarm notification via email for faster recovery

Please scroll horizontally to look at table below.

Stability chamber
Model Temperature &
humidity range
max-minimum range
Inside dimensions
W×H×D (mm)
CSH-112 +20 to +75°C /
50 to 90%rh
±2°C / ±5%rh W600×H700×D560
CSH-112HG ±1°C / ±5%rh
CSH-122 ±2°C / ±5%rh W750×H950×D660
CSH-122HG ±1°C / ±5%rh
CSH-132 ±2°C / ±5%rh W1100×H950×D760
CSH-132HG ±1°C / ±5%rh
Room type
CWH-20A +25 to +40°C /
60 to 75%rh
±1°C / ±5%rh W1850×H2100×D2080
CWH-30A W2750×H2100×D2080
CWH-40A W2750×H2100×D3000


Superior temperature and humidity distribution,
fully supports demanding criteria

±1°C/±5%rh guaranteed
Supports severe storage conditions of ±1°C/±5%rh (CSH-HG, CWH)
Virtual Air Jacket System
A newly developed Virtual Air Jacket system makes it possible to maintain uniform temperature and humidity distribution within the chamber.
Air blown from below circulates along the chamber walls for stable airflow that is not effected by specimen volume and etc.
Storage conditions stipulated by ICH guidelines are maintained, regardless of the position in which specimen are located (within effective dimensions). (CSH)
Smooth specimen access (CSH)
Sliding shelves are used to allow easy access to specimens. Shelves can be pulled out to one-half of their depth. When heavy specimens such as liquids are placed on the shelves, a fall-prevention mechanism keeps them from being pulled out when slid forward.
(Equally distributed load per shelf is 30 kg)

Air flow (Virtual Air Jacket)

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