DBL 5460 Parts Made of Energy Absorbing Foams for Interiors

The standard "DBL 5460 Parts made of energy absorbing foams for interiors" developed by the Daimler automobile company describes the supply specifications for parts made of energy absorbing foams for interiors. An overview of the permitted product versions is given in the table provided in the standard as follows.

• Product version .00: Materials: Foam made from energy-absorbing polypropylene (EPP) particles. This material is heat resistant up to 130 degrees. Application examples include: side impact protection pad for sun visors and door panels.
• Product version .10: Materials: Foam made from energy-absorbing polypropylene (EPP) particles. This material is heat resistant up to 110 degrees. Application examples include: Knee supports and various boxes (e.g. for tools).
• Product version .20: Materials: Foam produced from energy absorbing polypropylene (EPP) extrusions with anisotropic properties. This material is heat resistant up to 130 degrees. Application examples include: side impact protection pad for sun visors and door panels.

The requirements in this standard are listed as follows:

• Existing legal requirements and laws for safety requirements, homologation (especially exhaust emissions) and quality must be complied with. In addition, the relevant requirements of the Daimler Group apply.
• For components, materials must comply with applicable legal regulations. For information on prohibited substances and declaration requirements, the DBL 8585 standard must be followed.
• Foams must be free from any manufacturing defects that could impair their processing and handling properties or their appearance. They must be substantially uniform in density and particle structure and free from pockets, unless local deviations are indicated on the drawing. Foams must also be harmless to health and largely free of solvents. They must not irritate the skin.
• Legal requirements and local standards must be complied with. Daimler-specific specifications for emissions from materials and components in the vehicle interior must also be met. The DBL 5430 standard must be followed in this regard.
• Component test chamber measurements in accordance with the DBL 5430 standard must be carried out in consultation with the responsible emissions department.

The test methods defined in this standard are:

• Apparent (bulk) density: DIN EN ISO 845 standard must be followed.
• Piece weight: The table given in the standard annex is taken as basis.
• Thermal ageing: DIN EN ISO 2440 standard must be followed.
• Dimensional change after thermal ageing: ISO 2796 standard must be followed. For storage conditions, the table given in the standard must be followed.
• Tensile strength: The DIN EN ISO 1798 standard must be followed. The test is carried out in a standard atmosphere, after thermal aging, and the table given in the standard for storage conditions must be followed.
• Elongation at break: DIN EN ISO 1798 must be followed. The test is carried out in a standard atmosphere, after thermal ageing, and the table given in the standard for storage conditions must be followed.
• Compression hardness at 25 percent compression: Measured at the first load in accordance with DIN EN ISO 3386-1. The test is carried out in a standard atmosphere, after thermal aging, and the table given in the standard for storage conditions must be observed.
• Combustion test: DBL 5307 standard must be followed.
• Emission analysis: DBL 5430 standard must be followed.
• Odor test: DBL 5430 standard must be complied with.

Energy absorbers are a class of products that absorb kinetic mechanical energy, usually by compressing or deflecting it over a long distance at a relatively constant stress, without rebound.

Two different types of energy-absorbing foams are typically used: expanded polystyrene foam (EPS) or expanded polypropylene foam (EPP9). Both are closed-cell, lightweight, and durable foam plastics designed to protect a person from impact forces.

Among the numerous tests, measurements, analyses and evaluation studies that our organization has carried out for businesses in various sectors, it also provides testing services defined in the standard “DBL 5460 Parts manufactured from energy absorbing foams for interior spaces” with its trained and expert staff and advanced technological equipment.