| 000 | 00293nam a2200073 4500 | ||
|---|---|---|---|
| 080 |
_a _b |
||
| 245 | _aIS: 9570 - 1980; Classification of flammable gases or vapours with air according to their maximum experimental safe gaps and minimum igniting currents | ||
| 700 | _aBureau of Indian Standards | ||
| 260 |
_aNew Delhi _bBIS _c1980 |
||
| 300 | _a13p | ||
| 999 |
_c33509 _d33509 |
||