TY  - BOOK
ED  - British Standards Institution
TI  - Methods of testing water used in industry
T2  - BS 2690 : Part 5 : 1967)
AV  - GY TD380.M47 
PY  - 1967///
CY  - London
PB  -  : British Standards Institution, 
KW  - Water
KW  - Testing
KW  - Analysis
N1  - Part 5 : Alkalinity, acidity, PH value and carbon dioxide
ER  -