Appendix II
EN 13336 REQUIREMENTS FOR FURNITURE LEATHER
Table
Physical requirements of leather used in EU Ecolabel furniture (as per EN 13336)
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Fundamental characteristics |
Test method |
Recommended values |
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Nubuck, Suede and Aniline (*1) |
Semi-aniline (*1) |
Coated, pigmented and other (*1) |
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pH and ΔpH |
EN ISO 4045 |
≥ 3,5 (if the pH is < 4,0, ΔpH shall be ≤ 0,7 |
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Tear load, average value |
EN ISO 3377-1 |
> 20 N |
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Colour fastness to to-and-fro rubbing |
EN ISO 11640. Total mass of finger 1 000 g. Perspiration alkaline solution as defined in EN ISO 11641. |
Aspects to be evaluated |
Change of leather colour and felt staining |
Change of leather colour and felt staining No destruction of finish |
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using dry felt |
50 cycles, ≥ 3 grey scale |
500 cycles, ≥ 4 grey scale |
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using wet felt |
20 cycles, ≥ 3 grey scale |
80 cycles, ≥ 3/4 grey scale |
250 cycles, ≥ 3/4 grey scale |
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using felt wetted with artificial perspiration |
20 cycles, ≥ 3 grey scale |
50 cycles, ≥ 3/4 grey scale |
80 cycles, ≥ 3/4 grey scale |
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Colour fastness to artificial light |
EN ISO 105-B02 (method 3) |
≥ 3 blue scale |
≥ 4 blue scale |
≥ 5 blue scale |
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Dry finish adhesion |
EN ISO 11644 |
— |
≥ 2 N/10 mm |
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Dry flex resistance |
EN ISO 5402-1 |
For aniline leather with non-pigmented finish only, 20 000 cycles (no finish damage cracks) |
50 000 cycles (no finish damage cracks) |
50 000 cycles (no finish damage cracks) |
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Colour fastness to water spotting |
EN ISO 15700 |
≥ 3 grey scale (no permanent swelling) |
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Cold crack resistance of finish |
EN ISO 17233 |
— |
– 15 °C (no finish crack) |
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Fire resistance |
EN 1021 or relevant national standards |
Pass |
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(*1)
Definitions of these leather types are according to EN 15987. |
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