| 000 | 00439nam a22001457a 4500 | ||
|---|---|---|---|
| 003 | OSt | ||
| 008 | 090807t xxu||||| |||| 00| 0 eng d | ||
| 082 | _a614.894.43:621-777.6 | ||
| 110 | _aIndian standards institution | ||
| 240 | _aIndian standard | ||
| 245 | _aColour identification markings for air-purifying canisters and cartridges | ||
| 260 |
_aNew Delhi _bIndian standards institution _c1977 |
||
| 653 | _aIS:8318-1977 | ||
| 942 | _cISI | ||
| 999 |
_c336341 _d336341 |
||