Page 11 - Sioen Clothing Catalogue

FLAME SPREAD (ISO 15025)
SPRAY TEST Determination of the limited spread of HYDROSTATIC PRESSURE TEST
Determination of the water repellency flames Determination of resistance to water
penetration
The evaluation of the test is visual This test measures the limited spread
appreciation of the surface of the fabric of flames of vertically oriented textile The standard specifies a hydrostatic
(number of absorption points on the fabrics (one or several layers), when pressure method for determining the
surface). subjected to a small defined flame. resistance of fabrics to penetration
A defined flame from a specified burner by water. The highest class of water
is applied for 10 seconds to the surface penetration resistance in this European
or to the bottom edge. Standard was deduced from several
national norms which imposed a test
pressure of 0.13 bar (1300mm).

CRUMPLE FLEX TEST
(EN ISO 7854:1997 METHOD C)
Determination of repeated flexing
resistance of waterproof material
HEAT TRANSFER RADIATION
Waterproof material used in rain garments
(EN 343) must withstand 9000 cycles Determination of heat transfer
of repeated flexing without losing its radiation
waterproofness. This test is also a method The test EN ISO 6942 exposes
to evaluate/compare different waterproof the fabrics of the suit to an intense
materials.
HEAT TRANSFER FLAME radiant heat (40 kW /m²). The
st
Determination of the heat transfer index threshold of pain (1 degree burns ) is
defined, as well as the moment that
This standard defines a method to 2nd degree burns originate and the
compare the Heat Transfer Index (HTI) of reaction time (the time between RHTI
materials and material assemblies. 12° and RHTI 24°).

SEAM STRENGTH TEST RAIN TOWER TEST (EN 14360)
Determination of mechanical
performance BALLYFLEX TESTER (ISO 7854/B) Besides the selection of the materials
Determination of flex cracking and their water-resistant properties, the
The force necessary to tear a fabric, resistance of waterproof material waterproofness of the seams, also the
measured by the force necessary design of the garment has an important role.
to start or continue a tear in a fabric. The number of flexing cycles a
Expressed in Newton. There are several waterproof, chemical protective fabric At Sioen, the garments are put in a rain
possible test methods specified in can withstand without showing damages, tower (build to EN 14360) on a manikin for
various European and International without losing its waterproof properties. one hour with a rainfall of 450 l/m2/h to
Standards. In the standard for chemical Expressed in number of cycles and detect possible weak points in the design.
protective garments the trapezoidal tear divided into 6 classes The manikin has a detection layer to
resistance is specified. (from 1000 up to 100000 cycles). visualize eventual leaking areas.

INTRO 11