Revised Standard from Last Update.

1. SCOPE

1.1 This standard prescribes requirements and methods of test for reagent grade water for laboratory use. General guidelines for the storage of the reagent water are also given.

1.2 It does not cover water used for biological or medical and organic trace analysis.

2. REFERENCES

The standards listed below contain provisions which through reference in this text, which constitute provisions of this standard. At the time of publications, 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 1622 : 1981 Methods of sampling and microbiological examination or water (first revision)

IS 3025 Methods of sampling and test (Physical and Chemical) for water and waste water:

(Part 11) : 2022 pH value (second revision)

(Part 14) : 2013 Specific conductance (wheatstone bridge, conductance cell) (second revision )

(Part 15) : 1984 Total residue (total solidsdissolved and suspended) (first revision)

(Part 35) : 1988 Silica (first revision)

(Part 73) :

2021/SO 20236 : 2018 Instrument based method for determination of total organic carbon TOC dissolved organic carbon DOC total bound nitrogen TNb and dissolved bound nitrogen DNb

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