PN-EN ISO 6940
Laboratory
FLAMMABILITY TESTS VERTICALLY SUPPORTED TEXTILE
PRODUCTS WITH A METHOD ACCORDING TO
PN-EN ISO 6940
Principle
of the method.
This test consists of
exposing samples, held in a vertical position, to a flame and
determining the speed of propagation of the flame over the tested
material tested. The value is measured by the
time required to cause the ignition of the product sample. The
shortest time needed to ignition of the product sample is measured.
Stand
for testing reaction to fire of vertically oriented specimens
(textile fabrics)
Tests
may need to be conducted to either surface exposure or edge exposure,
or both
Test
specimen. For each
exposure condition, a minimum of six representative specimens of the
product shall be tested. Three specimens shall be cut lengthwise and
three crosswise. The
studies shall cover materials and textile products including products
processed in the form of mono-component or multi-component materials
(coated, quilted, multi-layered and similar systems).
Where a
product has areas of its surface which are distinctly different, but
each of these separate areas can satisfy the surface characteristics
for essentially flat products, then more than one test set shall be
conducted to evaluate the product.
Therefore,
the exact number of samples can be determined only after the initial
examination.
Dimensions
of the test specimens.
- 200 mm long
- 80 mm wide.
If
the dimensions of a material do not permit taking a sample of the
given dimensions the test shall be carried out, in accordance with
the Technical Service, on the fitted size of the material which shall
be mentioned in the test report.
Applying
research methods:
- civil engineering,