IS 1493 : Part 6 : 2020/ISO 13313 : 2017 Methods of Chemical Analysis of Iron Ores -Part 6 Determination of Sodium Content-Flame Atomic Absorption Spectrometric Method

Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 6) (First Revision) which is identical to ISO 13313 : 2017 ʽIron ores — Determination of sodium — Flame atomic absorption spectrometric method’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Methods of Chemical Analysis of Metals Sectional Committee and approval of the Metallurgical Engineering Division Council.

The Standards was first published in 1990 under dual numbering system and aligned with ISO 6831 : 1986. Subsequently, 6831 : 1986 was revised to ISO 13312 : 2017 ‘Iron ores — Determination of potassium — Flame atomic absorption spectrometric method’ and ISO 13313 : 2017 ‘Iron ores — Determination of sodium content — Flame atomic absorption spectrometric method’. The Committee has decided to revise this standard under dual numbering system and align it with ISO 13313 : 2017 ‘Iron ores — Determination of sodium content — Flame atomic absorption spectrometric method’ and IS 1493 (Part 9) has been aligned with ISO 13312 : 2017 ‘Iron ores — Determination of potassium — Flame atomic absorption spectrometric method’.

The Standard has been published in 8 parts. The other parts of this standard are:

Part 1 Determination of common constituents

Part 2 Determination of Silicon Content by reduced Molybdosilicate spectrophotometric Method

Part 3 Determination of titanium, Chromium, Vanadium, Calcium and magnesium by atomic absorption spetrophotometry

Part 4 Determination of aluminium by atomic absorption spectrophotomety

Part 5 Determination of copper content atomic absorption spectrometric method

Part 7 Methods of chemical analysis of iron ores — Part 7 Determination of Lead Content — Flame Atomic Absorption Spectrometric Method

Part 8 Determination of arsenic content — Molybdenum blue spectrophotometric method

Part 9 Determination of potassium — Flame atomic absorption spectrometric method

Part 10 Determination of zinc — Flame atomic absorption spectrometric method

The text of ISO Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminologies and conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words `International Standard’ appear referring to this standard, they should be as read as ‘Indian Standard’.

b) Comma (,) has been used as a decimal marker, while in Indian Standards, the current practice is to use a point (.) as the decimal marker.