Overview

The QGI Environmental Chamber is designed for accurate conditioning of paper, paperboard, and similar materials under controlled laboratory temperature and humidity conditions. It ensures samples reach proper equilibrium before physical and mechanical testing. The chamber is equipped with advanced PID temperature and humidity controllers, mounted on the front panel for precise setting and monitoring. Uniform air circulation ensures stable environmental conditions throughout the chamber.

A sample is considered conditioned when two consecutive weighings, taken at least one hour apart, do not differ by more than 0.25%, ensuring compliance with international paper testing requirements.

This conditioning method aligns with recognized standards such as:
ISO 187
TAPPI T402

Technical Specifications

Inner Chamber Size: 700 mm × 450 mm × 450 mm
Temperature Range: 10°C to 60°C (Accuracy ±0.5°C)
Humidity Range: 30% to 90% RH (Accuracy ±3%)

The complete unit is supplied with a built-in compressor system and water chamber with heater for precise humidity generation and control.

Key Features

Accurate sample conditioning
Digital PID temperature & humidity control
Stable and uniform environment
Heavy-duty insulated chamber
Ideal for pulp, paper & packaging laboratories

The Environmental Chamber ensures reliable pre-test conditioning, improving accuracy and repeatability in paper quality testing.