| 000 | 004560000a22001450004500 | ||
|---|---|---|---|
| 027 | _aBS 2690 : Pt. 13 : 1972 | ||
| 041 | _aeng | ||
| 080 |
_a628.1 _b: 663.63.01 : 543.3 |
||
| 942 | _cSD | ||
| 110 | _aBRITISH STANDARDS INSTITUTION | ||
| 245 | _aBS 2690 : Pt. 13 : 1972 : Methods of testing water used in industry : dichromate value, non-volatile organic carbon tannis and chlorine | ||
| 260 |
_aLondon _bB.S.I. _c1972 |
||
| 300 | _a19p. | ||
| 500 | _aSTD691 | ||
| 999 |
_c24753 _d24753 |
||