Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 1) (Third Revision), which is identical with ISO 4796-1 : 2016 ‘Laboratory glassware — Bottles — Part 1: Screw neck bottles’ issued by the International Organization for Standardization (ISO), was adopted by the Bureau of Indian Standards on recommendation of the Glass, Glassware and Laboratoryware Sectional Committee and approval of the Chemical Division Council.

This standard specifies a series of screw-neck bottles suitable for the storage of fluid liquid and solid chemicals and reagents in general laboratory use.

This standard was originally published in 1959 and subsequently revised in 1993 and 2005. Second revision of this standard was based on the ISO 4796-1 : 2000. The third revision of this standard have been undertaken to align it with ISO 4796-1 : 2016. In this revision, screw-neck bottles with nominal capacities of 150 ml, 750 ml, and 3 500 ml have been included.

This Indian Standard has been published in several parts. Other parts in this series are:

Part 2 Conical Neck Bottles

Part 3 Aspirator Bottles

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’ appears 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.