Thor is suitable for commercial diving applications but is also an excellent option for military and rescue purposes as well as sport diving.

Being a higher grade rubber than other rubber drysuits in its class, Thor represents excellent value for money whilst offering high performance. Built to the usual high-standards that divers expect from Northern Diver drysuits, Thor is an excellent and welcome addition to the drysuit range.

The permeation values are based on the time it takes for the chemical to permeate the suit material. The permeation test is performed up to 480 minutes. The reports that indicate greater than 480 minutes means that no chemical was detected above 0.1 mg/ min/ cm2 for 8 hours duration.

Actual breakthrough vs. Normalized breakthrough.

Actual breakthrough is reported in minutes and occurs when initial breakthrough is detected. Each chemical tested has unique characteristics and minimal detectable limits.

For example: if a chemical has a minimum detectable limit of 0.059 mg/ min/cm2, actual breakthrough is reported when challenge chemical concentrations reach 0.059 mg/ min/ cm2 or greater. Normalized breakthrough occurs when challenge chemical breakthrough concentrations reach 0.1 mg/ min/ cm2 or greater (ASTM F739).

Maximum and Minimal Detectable Rates.

This indicates the maximum level of chemical detection using the permeation test system. Minimal detectable rate is the lowest rate of permeation that is detectable with the permeation system.

Steady State Permeation.

The constant rate of permeation that occurs after breakthrough when the chemical contact is continuous and all forces affecting permeation has reached equilibrium.