IS 3171 : Part 2 : 2006 /ISO 7026 : 1997 Internal Combustion Engines - Fuel Injection Nozzle Holders - Part 2 : Screw-in Injection Nozzle Holders, Types 20, 21, 21.1 and 27 for Pintle Nozzle Size `S', Type B

National Foreword

This Indian Standard ( Part 2 ) ( First Revision ) which is identical with ISO 7026 : 1997 Diesel engines - Screw-in injection nozzle holders, types 20, 21, 21.1 and 27 for pintle nozzle size "S", type "B" issued by the International Organization for Standardization ( ISO ) was adopted by the Bureau of Indian Standards on the recommendation of the Automotive Primemovers, Transmission and Steering Systems and Internal Combustion Engines Sectional Committee and approval of the Transport Engineering Division Council.

This standard was first published in 1997. The first revision of the standard was taken due to revision to base standards. In this revision a new nozzle holder type is included.

The Sectional Committee decided to align the Indian Standards with the corresponding International Standards wherever feasible and wherever the domestic considerations were not so intense as to have standards different from the ISO Standards. This decision was taken with a view to upgrade the quality of the products in line with the International Standards.

The text of the 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.

The standard is one in the series of standards on fuel injectors. Other standards published in the series are: