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EU A.13: Pyrophoric properties of solids and liquids

The purpose of the study is to evaluate if a spontaneous ignition of the test item a short time after coming into contact with air at room temperature will occur.

(Substances which need to be exposed to air for hours or days at room temperature or at elevated temperatures before ignition occurs are not covered by this test method).

Study Design

Course of the test

1 to 2 cm3 of the test item will be poured from about 1 m height onto a non-combustible surface and it will be observed whether the test item ignites during dropping or within five minutes of settling. The test will be performed six times unless ignition occurs. The test will be performed six times unless ignition occurs.

Endpoints

If the substance ignites within five minutes when added to an inert carrier and exposed to air it is considered to be pyrophoric.

A one single positive result is sufficient for the substance to be considered pyrophoric.

Guidelines and Literature

  • European Economic Community (EEC), EEC Directive 92/69, Annex V, A.13 „Pyrophoric Properties of solids and liquids“, EEC Publication No. L383, December 1992