BS 2690-13:1972
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Methods of testing water used in industry Dichromate value (chemical oxygen demand), non-volatile organic carbon, tannins and chlorine
Hardcopy
04-15-1989
English
06-29-1972
Two methods for total chlorine and one for free chlorine and the other determinations. 2.5 mg of oxygen upwards for dichromatic value, 0.1 mg to 15 mg of carbon for non-volatile organic carbon, 10 μg to 250 μg for tannins, up to 0.4 mg for chlorine.
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