PSA B65 3110 Leather Material (Leather or Cut Parts) - General Requirements

The “PSA B65 3110 Leather material (leather or cut parts) - General requirements” standard developed by the Peugeot automobile company describes the technical specifications that the leather (hidden or cut parts) used in the interior of the car must meet. This standard also applies in cases of decoration (embroidery, embossing, perforation and similar). If a project technical document exists, the requirements of this technical document project take precedence over the requirements of this existing standard.

For the purposes of this standard,

• The upper layer refers to the outer side of the skin, without hair and epidermis, characterized by the (bovine) pattern of hairy follicles.
• Full leather refers to leather that retains its integrity without any removal of the surface by a corrective mechanical process (sanding).
• Corrected grain leather refers to leather whose grain has been removed by light sanding (the original drawing can still be identified).
• Wet-blue - Chrome tanning is a process of trivalent chromium plating.
• Wet-white - Chromium-free tanning is the process of tanning with synthetic chemicals or heavy metal substances (does not contain trivalent chromium).
• Split skin is the part of the lower dermis obtained after splitting the skin.
• folded skin, The last layer is the skin, which does not adhere perfectly to the shell and forms small grooves or creases when folded into the hollow.
• Hollow leather is leather that lacks grip, is loose in texture, is soft and has no elasticity.
• Soft skin is the hollow skin found at the groin level and may indicate tearing of the fibers in the back of the skin.
• Sensory quality is an objective, one-dimensional feature evaluated by humans.
• Perceived intensity is a quantitative measurement of a descriptor by a panel of trained sensory experts. Perceived intensities range from 0 (absence of perception) to 10 (very intense perception).

The requirements in this standard are the requirements of the PSA B65 0110 standard, except for the requirements specified below.

Skins must meet the sourcing requirements imposed by the PSA Group:

• Category: cattle (all categories must be approved by PSA Group)
• Origin of the skins (compatible with the 5 freedom principles of animal welfare defined by the World Organization for Animal Health)
• Age of animals (3 years recommended)
• 3,5 m2 - 6 m2 surface covering (all surfaces must be approved by PSA Group)
• Classification of skins should be given to PSA Group
• Trimming (all holes at the bottom of a disc 10cm in diameter need to be removed)
• Water content of leather in the tannery (7 to 14 percent)

Within the scope of supply managed by the PSA Group (complete seat, panels, door, instrument panel, etc.), the verification of the leather material (appearance and technique) according to this standard must be approved by the PSA Group.

In case of development of a leather type for a color or a new surface (origin of the leather, tanning, preference selection, re-tanning, finishing, grain, etc.), the supplier is subject to PSA Group approval.

Unacceptable natural surface marks (or defects) on cut pieces, such as veins, gouges and scars, are described in the following catalogues:

• STE 96 285 600 99-grain skin defects catalog (types 2 and 3)
• STE 96 902 672 99 smooth skin defects catalog (type 1)

The hides should be mass dyed and the appearance side coated with a topcoat in the approved colour. The contrast between the view side and the rear side should be evaluated using the 20105-degree gray scale defined in the NF EN 02-A9 standard. This coating should be non-sticky, flexible, non-sticky, its thickness should be uniform over the entire surface of the leather and should not contain defects such as bubbles and cracks.

To avoid deterioration such as curling, contamination, abrasion and tears during transportation, leather or cut parts must be delivered in accordance with the instructions of the relevant services and user facilities.

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