ICS 75.060                         PCD 01

Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (First Revision) which is identical with ISO 6976 : 2016 ‘Natural gas - Calculation of calorific values, density, relative density and Wobbe indices from composition’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Methods of Sampling and Test for Petroleum, its Products, Gaseous Fuels and Lubricants Sectional Committee and approval of the Petroleum, Coal and Related Products Division Council.

This Standard was first published in 1998 as adoption of ISO 6976 : 1995 Natural gas - Calculation of caloric values, density, relative density and Wobbe index from composition. The first revision of this standard has been undertaken to align it with the latest version of ISO 6976 : 2016.

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 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.