IS 15711 : 2024 Road Vehicles - Compressed Natural Gas (CNG)/Bio-CompressedNatural Gas (Bio-CNG) - Fuel System Components - Performance and General Test Methods
1 SCOPE
1.1 This standard specifies performance and general test methods for CNG/bio-CNG on board fuel system components, intended for use on motor vehicles defined in IS 14272.
1.1.1 This standard is applicable to CNG/bio-CNG fuel system components intended to use on vehicles using compressed natural gas/bio-compressed natural gas in accordance with IS 15320 (Part 1) (mono-fuel or bi-fuel applications or dual fuel applications). This standard is not applicable to the following:
a) Liquefied natural gas (LNG) fuel systemcomponents located upstream of, andincluding, the vaporizer;
b) Fuel containers;
c) Stationary gas engines;
d) Container mounting hardware;
e) Electronic fuel management;
f) Refuelling receptacles;
g) CNG/bio-CNG fuel systems componentsfor the propulsion of marine craft; and
h) Hydrogen natural gas blend (HCNG) fuelsystem components.
1.1.2 This standard is based upon a service pressure for compressed natural gas/bio-compressed natural gas as a fuel at 20 MPa (200 bar) settled at 15 °C. Other service pressures could be accommodated by adjusting the pressure by the appropriate factor (ratio). For example, a 25 MPa (250 bar) service pressure system will require pressures to be multiplied by 1.25. All references to pressure are to be considered gauge pressures unless otherwise specified.
2 REFERENCES
The standards listed in Annex A contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of these standards.
| IS No. | Title |
| IS 3400 (Part 4) : 2012/ISO 188 : 2011 | Methods of test for vulcanized rubber: Part 4 Accelerated ageing and heat resistance (third revision) |
| IS 3400 (Part 6) : 2018/ISO 1817 : 2015 | Methods of test for vulcanized rubbers: Part 6 Determination of the effect of liquids (fourth revision) |
| IS 9844 : 1981 | Methods of testing corrosion resistance of electroplated and anodized aluminium coatings by neutral salt spray test |
| IS 14272 : 2011 | Automotive vehicles - Types - Terminology |
| IS 15320 (Part 1) : 2012/ISO 15403-1 : 2006 | Natural gas - Natural gas for use as a compressed fuel for vehicles: Part 1 Designation of the quality (first revision) |
| IS 15710 : 2024 | Road vehicles - Compressed natural gas (CNG)/ bio-compressed natural gas (bio-CNG) fuel system components - General requirements and definition |