IS 4639 : Part 4 : 2000 /ISO 1998-4 : 1998 Petroleum Industry - Terminology - Part 4 : Refining

FOREWORD

This Indian Standard (part 4) (First Revision) which is identical with ISO 1998-4:1998 ‘petroleum industry - Terminology : Part 4 Refining’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of Petroleum Products Sectional Committee and approval of the Petroleum, Coal and Related Products Division Council.

This standard was first published in 1968 with a view to eliminate the ambiguity arising from different interpretations of terms used in petroleum trade and industry, and to establish a generally recognized terms. Since the industry has progressed manifolds over the years, a need was felt to bring in newer terms. The Committee, therefore decided to revise this standard to completely align withISO 1998-4:1998 under the dual numbering system. Accordingly, the title has been changed as ‘Petroleum industry - Terminology : Part 4 Refining’.

It is envisaged to issue this standard in eight different parts, each dealing with a specific aspect. The other parts in this series are as under:

Part 1 Raw materials and products

Part 2 Properties and tests

Part 3 Exploration and production

Part 5 Transport, storage, distribution

Part 6 Measurement

Part 7 Miscellaneous terms

Part 8 General and index

The English version of the text of ISO standard has been retained without deviations for publication as Indian Standard. Certain 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 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.