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Testing of plastic fuel tanks

Plastic fuel tanks are now days the most common fuel tank model within the automotive industry. One of the major benefits compared to metal fuel tanks is the almost unrestricted freedom of shape. However, there are various specific regulations for plastic fuel tanks concerning fire resistance, impact strength, permeability etc. with which they must comply.

Purpose

The requirements for plastic fuel tanks are regulated in the UN standard UN Regulation 34 Annex 5. Testing according to this standard, but also according to the customer's own requirements is performed at RISE

Method

The UN tests are, in general terms, as follows:

Fire resistance

The tank is filled to half its volume with fuel and exposed to an open flame for two minutes. More information on fire testing of plastic fuel tanks can be found via the link below.

Evaporative emission testing

This test measures the average permeation of petrol vapor over an eight-week period, by weighing the tanks and recording the loss of weight. During the test, the tanks are stored at a temperature of +40 °C in explosion-resistant areas.

Mechanical strength

The tanks are filled with water at +53 °C, and then subjected to an internal positive pressure of 30 kPa for five hours. The ambient temperature is also maintained at 53 °C.

Impact testing

The tanks are filled with a glycol/water mixture and cooled to -40 °C, before being subjected to blows from a pyramid-shaped body with an impact energy of 30 Nm.

Thermal testing

The tanks are filled with water at a temperature of +20 °C, and then placed in a test chamber for one hour at a temperature of +95 °C.

Deliveries

Performed testing with associated report can be used as a basis for certification of the fuel tank. Often, certification organizations (TÜV, VCA, RDW, TS etc.) require tests to be witnessed by the relevant organization.

Application of interest

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Service

Testing of plastic fuel tanks

Delivery level

Accredited

Standards

UN Regulation 34 Annex 5

Price

Price on tender

Preparations

In order to carry out the tests, a chassis including relevant components as well as relevant information about the fuel system and how it should be mounted is required. Please enter into a dialogue with one of the contact persons below. We also recommend starting a dialogue with a certifying organization at an early stage.

Contact person

Magnus Bobert

Civilingenjör

+46 10 516 51 90

Read more about Magnus

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Contact person

Klas-Gustaf Andersson

Ingenjör

+46 10 516 52 43

Read more about Klas-Gustaf

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Contact

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