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Paragraph 11 Penetration test:

Original text. Later amendments are not shown.

The specimen shall be placed on a rigid, flat, horizontal surface which will not move significantly while the test is carried out.

(a)

A bar of 3.2 cm in diameter with a hemispherical end and a mass of 6 kg shall be dropped and directed to fall, with its longitudinal axis vertical, on to the centre of the weakest part of the specimen, so that, if it penetrates sufficiently far, it will hit the containment system. The bar shall not be significantly deformed by the test performance.

(b)

The height of drop of the bar measured from its lower end to the intended point of impact on the upper surface of the specimen shall be 1 metre.