ISO 15500-16:2020 pdf download.Road vehicles — Compressed natural gas (CNG) fuel system components — Part 16: Rigid fuel line in stainless steel
1 Scope
This document specifies tests and requirements for the rigid fuel line in stainless steel, a compressed natural gas (CNG) fuel system component in accordance with ISO 1127 intended for use on the types of motor vehicles defined in ISO 3833. This document is applicable to vehicles (mono-fuel, bi-fuel or dual-fuel applications) using natural gas in accordance with the ISO 15403 series. It is not applicable to the following: a) liquefied natural gas (LNG) fuel system components located upstream of, and including, the vaporizer; b) fuel containers; c) stationary gas engines; d) container-mounting hardware; e) electronic fuel management; f) refuelling receptacles.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 1127, Stainless steel tubes — Dimensions, tolerances and conventional masses per unit length
ISO 15500-1, Road vehicles — Compressed natural gas (CNG) fuel system components — Part 1: General requirements and definitions
ISO 15500-2:2016, Road vehicles — Compressed natural gas (CNG) fuel system components — Part 2:Performance and general test methods
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 15500-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
4 Marking
Marking of the component shall provide sufficient information to allow the following to be traced:
a) the manufacturer’s or agent’s name, trademark or symbol;
b) the model designation (part number);
c) the working pressure or pressure and temperature range;
d) the serial number or date code.
The following additional markings are recommended:
— the direction of flow (when necessary for correct installation);
— the type of fuel;
— the electrical ratings (if applicable);
— the symbol of the certification agency;
— the type approval number;
— a reference to this document.
NOTE This information can be provided by a suitable identification code on at least one part of the component when it consists of more than one part.
5 Construction and assembly
The stainless-steel rigid fuel line shall comply with the applicable provisions of ISO 15500-1 and ISO 15500-2, and with the tests specified in Clause 6. Tolerances should follow the specifications of ISO 15500-2.
The stainless-steel rigid fuel line shall be seamless cold worked austenitic stainless-steel tube complying with ISO 1127.
ISO 15500-16:2020 pdf download
