| 000 | 004000000a22001450004500 | ||
|---|---|---|---|
| 999 |
_c60398 _d60398 |
||
| 027 |
_aSLS 522 1981 _q1981 |
||
| 041 | _ada | ||
| 080 |
_a69.001.3 _bS7 |
||
| 942 | _cSD | ||
| 110 | _aSri Lanka Standards Institution, Colombo LK | ||
| 245 | _aSLS 522 : 1981 : water for making concrete | ||
| 260 |
_aColombo _bSri Lanka Standards Institution _c1981 |
||
| 500 | _aSTD2710 | ||
| 650 | _aSRI LANKA STANDARDS | ||