| 摘要 |
<p>An article of protective clothing designed for protection against blast has a first sheet (11) of solid material backed by a second sheet (12) of pneumatic material, the physical properties and dimensions of the two sheets (11, 12) being such that an acoustic decoupling effect is provided which greatly reduces the pressure wa ve effect on the body of a person wearing the clo- thing. The first sheet (11) might by of GRP, 9 mm thick with an areal densit y of 20 kg/square metre and a second sheet (12) of pneumatic material having a nominal thickness of 20 mm, 94% air convent and a density of 45 kg/cubic metre.</p> |
