| 000 | 00445nam a22001457a 4500 | ||
|---|---|---|---|
| 999 |
_c3020 _d3020 |
||
| 003 | OSt | ||
| 005 | 20181116155141.0 | ||
| 008 | 181116b ||||| |||| 00| 0 eng d | ||
| 040 | _cNational Acoustics Laboratories | ||
| 110 | _aBritish Standards Institute | ||
| 245 | _aBS EN 352-2: 1993. Hearing protectors - safety requirements and testing. Part 2: Ear-plugs | ||
| 260 |
_aLondon _bBSI _c1993 |
||
| 264 |
_aLondon _bBSI _c1993 |
||
| 942 |
_2udc _cBOOK |
||