BS EN ISO 7393-2:2018 specifies a method for the determination of free chlorine and total chlorine in water,
readily applicable to lab- and field-testing. It is based on measurement of the absorption, the red DPD
colour complex in a photometer or the colour intensity by visual comparison of the colour with a scale
of standards that is regularly calibrated.
This method is appropriate for drinking water and other waters, where additional halogens like
bromine, iodine and other oxidizing agents are present in almost negligible amounts. Seawater and
waters containing bromides and iodides comprise a group for which special procedures are to be
carried out.
This method is in practice applicable to concentrations, in terms of chlorine (Cl2), from, for example,
0,000 4 mmol/l to 0,07 mmol/l (e.g. 0,03 mg/l to 5 mg/l) total chlorine. For higher concentrations, the
test portion is diluted.
Cross References:ISO 5667-3
ISO 3696
ISO 8466-1
ISO 5667-1
All current amendments available at time of purchase are included with the purchase of this document. | File Size : | 1
file
, 940 KB |
| ISBN(s) : | 9780580853777 |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 26 |
| Product Code(s) : | 30376231, 30376231, 30295122 |
| Published : | 05/11/2018 |
| Same As : | BS EN ISO 7393-2:2018 |
