IS 17471 : 2024/ISO 21487 : 2022 Small Craft - Permanently Installed Petrol and Diesel Fuel Tank
NATIONAL FOREWORD
This Indian Standard (First Revision) which is identical to ISO 21487 : 2022 'Small craft permanently installed petrol and diesel fuel tank' issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Inland Harbour Crafts and Fishing Vessels Sectional Committee and approval of the Transport Engineering Divisional Council.
This standard was first published in 2020 which was identical adoption of ISO 21487 : 2012. This revision has been undertaken to harmonize it with ISO 21487 : 2022. The major changes incorporated in this revision are as follows:
a) Introduction has been added to explain the addition of Annex A;
b) Scope has been amended to include installation of fuel tanks;
c) Some definitions have been updated;
d) Clause 4 has been updated, in particular 4.2, 4.3.9 and 4.4.1;
e) Sub-clause 5.2 has been updated and Table 2 has been introduced for tests;
f) Sub-clause 6.2 has been redrafted;
g) Clause 7 has been revised;
h) Annex A has been added, which provides a permeation test to determine the evaporative emissions from non-metallic tanks; and
j) Hindi title of the standard has been updated.
The text of ISO standard may be approved as suitable for publication as an Indian Standard without deviations. Certain conventions and terminologies 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'; and
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.