Permeation Performance
The following test results indicate resistance to permeation against each of the 15
liquid chemicals in the standardised test battery ASTM F1001-99a.
All tests carried out under laboratory conditions by independent accredited
laboratories in accordance with EN369:1993 and EN374-4:1993, unless otherwise
stated.
Table shows average breakthrough times in minutes.
Chemical
Tychem®TK.
Material
Visor
Acetone
>480
>480
Acetonitrile
>480
>480
Carbon Disulphide
>480
>480
Dichloromethane
>480
>480
Diethylamine
>480
>480
Dimethylformamide
>480
>480
Ethyl Acetate
>480
>480
Hexane
>480
>480
Methanol
>480
>480
Nitrobenzene
>480
>480
Sodium Hydroxide 50%
>480
>480
Sulphuric Acid 93%
>480
>480
Tetrachloroethylene
>480
>480
Tetrahydrofuran
>480
>480
Toluene
>480
Kemblok
TM
/Neoprene
Glove
Combination*
>480
>480
>480
>480
>480
>480
>480
>480
>480
>480
>480
>480
>480
>480
>480
>480
*Glove tests performed in accordance with ASTM standard F739-96.
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