| 摘要 |
A method of determining the compressibility of a layer 11 of a flexible material, such as fibre matting used in the production of reinforced plastic mouldings, the method comprising applying a predetermined pressure to the layer 11 of flexible material, and measuring the thickness of the layer 11 when subjected to the predetermined pressure. Also disclosed is a device for determining the compressibility of the layer 11, the device optionally comprising a weight block 13 of predetermined mass, which is placed on top of the layer 11 of flexible material. According to one embodiment the weight block 13 has a lower surface formed with a downwardly projecting rim 14 that engages the layer 11 of flexible material. |
