| 000 | 00433nam a2200121Ia 4500 | ||
|---|---|---|---|
| 082 |
_aIS CODE _bB.I.S |
||
| 100 | _aBureau of Indian Standards[BIS] | ||
| 245 | _aIS:6497-1990. Indian standard method of test for the efficacy of preservatives and evaluating the natural durability of timbers used in cooling towers. | ||
| 260 |
_aNew Delhi _bBureau of Indian Standards _c1990 |
||
| 300 | _a3p. | ||
| 500 | _aENG | ||
| 890 | _aIndia | ||
| 999 |
_c19222 _d19222 |
||