Tests conducted by an independent
laboratory show that Tyvek L1431N
fabric has a high barrier performance
that provides excellent protection
against liquid permeation.

Protective coveralls can all look
the same making selecting the best
protection a challenge. Permeation
tests (according to EN ISO 6529 –
Method A) were conducted to
determine the breakthrough times
of commonly used chemicals with
Tyvek, MPF (Microporous Film)
and SMS (Spunbond-Meltblown-
Spunbond) – materials that are
frequently used for type 4, 5, and 6
single-use chemical protective
clothing. Tests revealed that Tyvek
offers long-term protection of up to
eight hours.

To further help in the selection
process DuPont has developed a
series of videos featuring Professor
Victor Tytonius, the cyber scientist
who specialises in worker
protection. View the videos at:
www.differentprotection.tyvek.com