BS EN 13163-2008 pdf download.Thermal insulation products for buildings Factory made products of expanded polystyrene (EPS) Specification.
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply. Other relevant definitions are to be found in EN ISO 9229.
3.1.1
expanded polystyrene (EPS)
rigid cellular plastic material, manufactured by moulding beads of expandable polystyrene or one of its copolymers. with an air filled closed cellular structure
3.1.2
expanded polystyrene block
rigid insulation product or material generally of rectangular cross section and with a thickness not significantly smaller than the width
NOTE Blocks are supplied trimmed or untrimmed.
3.1.3
expanded polystyrene board
rigid insulation product (cut, moulded, or continuously foamed) of rectangular shape and cross section in which the thickness is significantly smaller than the other dimensions
NOTE 1 Boards may be of uniform thickness or tapered
NOTE 2 The board edges may be of various sorts (e.g. square, half lapped, tongue and groove).
3.1.4
expanded polystyrene roll
boards or strips bonded to a flexible facing. supplied in a wound or folded form, which form a continuous insulation layer when unrolled
3.1.5
preformed ware
insulation shapes formed by cutting or grinding from blocks or boards or by shape moulding
3.1.6
level
given value, which is the upper or lower limit of a requirement; the level is given by the declared value of the characteristic concerned
3.1.7
class
combination of two levels of the same property between which the performance shall fall, where the levels are given by the declared value of the characteristic concerned
Product properties shall be assessed in accordance with Clause 5. To comply with this standard, products shall meet the requirements of 4.2, and the requirements of 4.3 as appropriate.
NOTE Information on additional properties is given in Annex 0.
One test result for a product property is the average of the measured values on the number of test specimens given in Table 13. Wherever limit values are used, they shall represent the value achieved by at least 90 % of the production with a confidence level of 90 %.
For mechanical properties no single measured value within the consecutive group used for obtaining the test result, shall be more than 10 % lower than the limit value defining the level. For non-mechanical properties a deviation from the limit value may be required and where appropriate these are expressed in the text.
4.2 For all applications
4.2.1 Thermal resistance and thermal conductivity
Thermal resistance and thermal conductivity shall be based upon measurements carried out in accordance with EN 12667 or EN 12939 for thick products.
The thermal resistance and the thermal conductivity shall be determined In accordance with Annex A and declared by the manufacturer according to the following:
— the reference mean temperature shall be 10 °C;
the measured values shall be expressed with three significant figures;
NOTE Zeros on the left hand side are not counted as significant figures.
— for products of uniform thickness, the thermal resistance, RD, shall always be declared. The thermal conductivity, AD, shall be declared where possible. Where appropriate, for products of non-uniform thickness (e.g. for sloped and tapered products) only the thermal conductivity, 4, shall be declared.
— the declared thermal resistance, RD. and the declared thermal conductivity, 4, shall be given as limit values representing at least 90 % of the production, determined with a confidence level of 90 %;
— the value of thermal conductivity. 4. shall be rounded upwards to the nearest 0,001 WI(m.K) and declared as 4 in levels with steps of 0,001 W/(mK),
— the declared thermal resistance, RD. shall be calculated from the nominal thickness. ‘1N’ and the corresponding thermal conductivity, A/%. unless measured directly. For products for which compressibility is measured (see 4.3.13) the RD shall be calculated using d1 instead of N• For the calculation of the declared thermal conductivity, A0, related to the corresponding nominal thickness, factors for the thickness effect conversions are given in Annex B:
— the value of thermal resistance. when calculated from the nominal thickness, N’ and the corresponding thermal conductivity, shall be rounded downwards to the nearest 0,05 m2-KJW, and declared as RD in levels with steps of 0,05 m2-KNV:
— the value of for those products for which only the thermal resistance is measured directly, shall be rounded downwards to the nearest 0,05 m2•KIW. and declared as RD in levels with steps of 0,05 m2KIW.
4.2.2 Length and width
Length, 1, and width, b, shall be determined in accordance with EN 822. No test result shall deviate from the nominal values by more than the tolerances given in Table 1 for the declared class.
4.2.3 Thickness
Thickness, d, shall be determined in accordance with EN 823. No test result shall deviate from the nominal thickness, dN, by more than the tolerances given in Table 1, for the dedared dass.
4.2.4 Squareness
Squareness shall be determined in accordance with EN 824. The deviation from squareness on length and
width. Sb, shall not exceed the tolerances given in Table 1, for the declared class.
4.2.5 Flatness
Flatness shall be determined in accordance with EN 825. The maximum deviation from flatness, Smax, shall not exceed the tolerances given in Table 1 for the declared class. This test shall not be performed when the tests described in 4.3.13 are used.BS EN 13163-2008 pdf download.