Thor Drysuit

Permeation test results

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.

Supplied with...

The Northern Diver Thor® drysuit is supplied boxed with a hood, valves and hoses, zip lubricant, user manual and a sturdy drysuit bag which folds open for use as a changing mat.

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Contact Us

If you have any questions don't hesitate to get in contact.

Ring us on:

01257 254 444 (overseas dial 00 44 1257 254 444).

Alternatively use our contact form for a prompt response.

Drysuit Custom Options

Click here to view all the options available on our drysuits.

Independent tests show

That the Thor drysuit is resistant to chemical and biological permeation.

Full details available on request.