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Protective Clothing for Europe's Workforce  

Chemical Permeation Guide

The data tables below give the breakthrough time in minutes according to EN 374-3 for various chemicals when in contact with selected Lakeland products. 1. 2.

(Note: For ChemMAX chemical permeation data see here.)

MicroMax

 

seam

fabric

Sulphuric acid 30%

45min

13min

Sodium hydroxide 10%

75min

540min

Pyrolon CRFR

 

seam

fabric

Sulphuric acid

22min

19.7min

Sodium hydroxide

 

>480min

Methanol

 

>480min

Hydrofluoric acid

 

13min

TomTEX

 

seam

fabric

Hydrochloric acid 36%

>332min

122min

Sulphuric acid 98%

>330min

>540min

Hydroflouric acid 48%

 

38.5min

Nitric acid 65%

 

279min

Sodium Hydroxide 40%

 

>480min

Sodium Hypochlorite 12%

 

>480min

Acetic acid

 

29min

Chromium Sulphuric acid 2%

 

229min

Ethylene Glycol

 

>480min

Phosphoric acid 85%

 

>480min

Potassium Chromate Solution

 

>480min
  1. Note that the "breakthrough time" refers to the point at which the chemical achieves a permeation rate of 1μg cm-2 min-1 as defined in EN374-3.
  2. Breakthrough times give an indication of permeation rate through the fabric under laboratory controlled conditions and are not intended to imply a duration of “safe use” for a garment.