Revised Standard from Last Update.

1. SCOPE

1.1 This standard prescribes two methods, namely, gravimetric and volumetric, for determination of strength of naphthols. Both the methods are applicable to the naphthols given in Annex A.

1.2 Volumetric method prescribed in the standard is not applicable to the mixtures of naphthols.

1.2.1 In case of dispute, the gravimetric method shall be used for determination of strength of naphthols.

2. REFERENCES

The following standard contains provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the edition indicated was 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 edition of the standard indicated below.

517 : 2020 Specification for methanol (Methyl alcohol) (third revision)

1070 : 1992 Reagent grade water – Specification (third revision)