Revised Standard from Last Update.

1. SCOPE

1.1 This standard covers reverse osmosis (RO) based point-of-use (PoU) water treatment system with a product water capacity of up to 50 litre per hour, that reduces total dissolved solids (TDS); and physical, chemical, and microbiological contaminants from specified concentrations in the feed water to the maximum allowable limits in the product water.

1.2 The standard does not cover requirements for consumables, such as filters and treatment media.

2. REFERENCES

The standards listed below contain provisions, which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards listed below:

IS 302 (Part 1) : 2008 Safety of household and similar electrical appliances: Part 1 General requirements (sixth revision)

IS 3025 Method of sampling and test (physical and chemical) for water and wastewater:

(Part 16) : 2023 Filterable residue (total dissolved solids) at 180 °C (second revision)

(Part 34) : 1988 Nitrogen (first revision)

(Part 37) : 2022 Arsenic (second revision)

(Part 41) : 1992 Cadmium (first revision)

(Part 42) : 1992 Copper (first revision)

(Part 47) : 1994 Lead (first revision)

(Part 48) : 1994 Mercury (first revision)

(Part 52) : 2003 Chromium(first revision)

(Part 60/Sec 1) : 2023 Fluoride (second revision)

IS 4905 : 2015 Random sampling and randomization procedures (first revision)

IS 9845 : 1998 Determination of overall migration of constituents of plastics materials and articles intended to come in contact with foodstuffs - Method of analysis (second revision)

IS 10500 : 2012 Drinking water - Specification (second revision)

IS 15185 : 2016 Water quality - Detection and enumeration of Escherichia coli and coliform bacteria - Membrane filtration method for water with low bacterial background flora (first revision)