IS/ISO 15002 : 2008 Flow-Metering Devices for Connection to Terminal Units of Medical Gas Pipeline Systems

NATIONAL FOREWORD

This Indian Standard which is identical with ISO 15002 : 2008 ‘Flow-metering devices for connection to terminal units of medical gas pipeline systems’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Anaesthetic, Resuscitation and Allied Equipment Sectional Committee and approval of the Medical Equipment and Hospital Planning Division Council.

Flow metering devices are widely used for delivery of medical gases supplied by a medical gas supply system directly to a patient. These devices need to deliver accurate flows under varying conditions of temperature and inlet pressure. Therefore, it is important that the operating characteristics be specified and tested in a defined manner.

This standard pays particular attention to:

- Safety (mechanical strength, safe relief of excess pressure, resistance to ignition);

- Gas specificity;

- Cleanliness;

- Suitability of materials;

- Accuracy;

- Testing;

- Identification; and

- Information supplied.

Annex A contains rationale statements for some of the requirements of this standard. The clauses and subclauses marked with an asterisk(*) after their number have corresponding rationale contained in informative Annex A, included to provide additional insight into the reasoning that led to the requirements and recommendations that have been incorporated in this standard. It is considered that knowledge of the reasons for the requirements will not only facilitate the proper application of this standard, but will expedite any subsequent revisions.

The text of ISO Standard has been approved as suitable for publication as an Indian Standard without deviations. 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.