Cart ( 0 ) Register Login

Webstore





RS ISO 7393-2: 2017
Water quality — Determination of free chlorine and total chlorine — Part 2: Colorimetric method using N,Ndialkyl-1,4-phenylenediamine, for routine control purposes
Abstract

This document 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.

General Information

CodeClassificationThemePagesPublisherAvailability
RS ISO 7393-2: 2017ADOPTED ISO STANDARDSEnvironment. Health protection. Safety25Second Edition
Jun 2019		Available
Price: RWF 28,500


View: All

View by: Classification

View by: Group
Agriculture ( 262 )
Metallurgy ( 114 )
Services ( 8 )
Testing ( 5 )
Rwanda Standards Board

© Rwanda Standards Board 2020  - All rights reserved

KK 15 Rd, 49; PO Box: 7099 Kigali-Kicukiro, Tel: +250 0788303492, Hotline: 3250, Email:info@rsb.gov.rw