Specified layerThe first paragraph is replaced by:In cases where burning or glowing particles might fall from the specimen onto an external surface underneath the tool, the test is made with a piece of white pine-wood board, approximately 10 mm thick, and covered with a single layer of tissue paper, positioned at a distance of 200 mm ± 5 mm below the place where the test flame is applied to the specimen. If the tool as a whole is tested, it is placed in its normal position of use above the pine-wood board, which is covered with a single layer of tissue paper.