BS/EN 233-2016 pdf download.Wailcoverings in roll form Specification for finished wallpapers, wall vinyls and plastics walicoverings.
5.2 Dimensions
5.2.1 General
This applies to the usable dimensions of the product.
5.2.2 Category 1
The area of the roll shall be 5,326 m2 ± 3 %.
The nominal width and length of a roll shall be marked. The actual width and length shall not deviate from the nominal values by more than 1,5 %.
The nominal width shall be not less than 500 mm and not greater than 530 mm.
5.2.3 Category 2
The nominal width and length of a roll shall be marked. The tolerance on the actual width and length shall be ± 1,5 %.
The nominal width shall be not less than 600 mm.
5.2.4 Category 3 (friezes)
The nominal length of a roll shall be marked. The tolerance on the actual length shall be ± 1,5 % in the case of roll of length not less than 10 m, otherwise ± 3%.
The nominal width shall be not less than 32 mm and not greater than 500 mm
5.3 Straightness and parallelity of the edges
The straightness and parallelity of the edges shall be measured in accordance with the requirements of
EN 12956.
The edges of the roll shall be straight and parallel over its entire length, with the following tolerances:
— straightness: over any I m length, the edges shall not deviate more than 1 mm from straight;
— parallelity: the 3 width measurements taken in accordance with the requirements of EN 12956 shall not differ by more than 1 mm.
5.4 Spongeability
For a wallcovering claimed to be spongeable, it shall be possible to wipe off the hanging adhesive while it is still damp from the front face of the walicovering with a damp cloth or sponge without causing visible damage.
Accordingly, a wallcovering subjected to the spongeability test described in EN 12956 shall exhibit no
damage or change likely to alter its appearance as a walicovering.
This symbol indicating this ‘spongeable’ level shall be as given in EN 235.
5.5 Washability
If a wallcovenng is claimed to be washable during its life after hanging, it shall be qualified as ‘washable’, ‘extra-washable’ or ‘scrubbable’ according to its grade of washability.
When tested under the test conditions specified for each level of washability by EN 12956, a wailcovering shall exhibit no damage or change likely to alter its appearance as a wallcovering compared with the reference sample.
The symbols indicating the washability levels shall be as given in EN 235.
5.6 Colour fastness to light
The numerical rating for colour fastness to light shall be determined in accordance with the requirements of EN ISO 105-B02 at a relative humidity of 60 % to 70 % and a maximum black panel temperature of 45 °C.
A walicovering conforming to this standard shall have a rating of not less than 4.
The symbols illustrating the levels of colour fastness to light shall be as given in EN 235.
5.7 Maximum migration of heavy metals and certain other elements
5.7.1 Test method
The test method shall be method A of EN 12149.
5.7.2 Requirements
The migration of heavy metals and specific elements, expressed as mg/kg of walicovering, shall not exceed the values in Table 1.
5.7.3 Interpretation of results
The analytical results obtained from the tests specified in EN 12149 shall be corrected by subtracting the value of the analytical correction factors given in Table 2 in order to obtain a corrected analytical result.
Wailcoverings shall be considered to meet the requirements of this European Standard if the corrected analytical result does not exceed the limits indicated In Table 1.
NOTE Given the precision of the methods specifIed in this European Standard, it is necessary to use the corrected analytical result to take into account the results of interlaboratory tests.
7.1 Visible marking
When compliance with this standard is claimed, the roll, its packaging or a label inside the packaging of the roll shall state the specific characteristics of the wallcovering in such a way that the information below can be read by the purchaser without removing the roll from the packaging.
a) The number of this European Standard, i.e. EN 233.
b) The name or identification mark of the manufacturer, supplier or distributor.
c) The product description, using where appropriate, the terms from EN 235.
d) The product identification, i.e. pattern identifier and batch identifier.
e) The nominal width and length of the roll for categories 1 and 2.
f) The nominal length for category 3 (friezes).
g) The symbol from EN 235 corresponding to the performance level of spongeability, washability or scrubbability should be used.
h) The symbol from EN 235 corresponding to its grade of colour fastness to light.
i) The symbol(s) from EN 235 corresponding to the means of applying the adhesive.
j) The symbol from EN 235 indicating the need for hanging in reverse alternate lengths if this is essential to give a satisfactory appearance.
k) The symbol from EN 235 for design repeat dimensions.
7.2 Additional marking
If appropriate, the following information shall be given on the roll, on a label or on an information sheet inside the packaging of the roll:
a) the symbol from EN 235 giving additional hanging instructions;
b) the type of adhesive to be used;
c) the symbol from EN 235 for method of removal;
d) the symbol from EN 235 indicating whether the wallcovering is duplex embossed.BS/EN 233-2016 pdf download.