This Standard is applicable to the apparatuses for producing mainly hypochlorous acid water which is designated as a food additive.

However, it is not applicable to apparatuses that produce specified pesticides (specified agricultural chemicals)2) or medical electrical equipment (JIS T 0601-1).

Notes 1) An aqueous solution containing chloride ions refers to drinking water that originally contained chloride ions or drinking water to which chloride ions have been added.

2) Specified pesticides (specified agricultural chemicals) are those pesticides that are defined in Article 2, Paragraph 1 of the revised Agricultural Chemicals Control Act and specified in No.2 Notification of the Ministry of Agriculture, Forestry and Fisheries, and the Ministry of the Environment.

IWA 6:2008 provides the guidelines for a water utility, or any body responsible for the management of parts of the water supply system, to be prepared and ready to manage a water crisis. It also provides a roadmap for possible relevant International Standards that could be useful and could be developed.

It provides guidance for determining the:

— effective number of continuous monitoring stations in the drinking water distribution network;

— location of monitoring stations in the drinking water distribution network;

— types of operational and drinking water quality parameter measuring devices (MDs) that can be installed in a continuous monitoring station;

— quality control, maintenance and calibration requirements of the continuous monitoring system.

This document excludes guidance on the design, structure, number and type of MDs to be installed in a continuous monitoring system.

curve, even by decreasing the working range. Instead of the linear regression analysis, a least-squares fit to a

second-order polynomial is applied (see test for linearity in 4.1.3 of ISO 8466-1:1990[1]). Using this fit, it is possible

to calculate not only the calibration function but also the confidence interval associated with it.

This part of ISO 8466 is intended primarily for use in method development and may not necessarily be applicable to

all routine analyses.

It defines the general context for linear calibration so that individual standards dealing with analytical methods for the examination of water quality can make reference to it.