ISO 19887-1:2024

Gaseous Hydrogen — Fuel system components for hydrogen-fuelled vehicles — Part 1: Land vehicles

This document establishes requirements for newly produced compressed hydrogen gas fuel system components, as listed below, that are intended for use on hydrogen gas powered land vehicles:

a)?????? check valves (see Clause?8);

b)?????? manual valves (see Clause?9);

c)??????? manual container valves (see Clause?10);

d)?????? automatic valves and automatic container valves (see Clause?11);

e)?????? hydrogen injectors (see Clause?12);

f)???????? pressure sensors, temperature sensors, and pressure gauges (see Clause?13);

g)?????? pressure regulators (see Clause?14);

h)?????? pressure relief valves (PRV) (see Clause?15);

i)???????? pressure relief devices (PRD) (see Clause?16, and refer to ISO 19882);

j)???????? excess flow valves (see Clause?17);

k)?????? gastight housing and leakage capture passages (see Clause?18);

l)???????? rigid fuel lines (see Clause?19);

m)???? flexible fuel lines, hoses, and hose assemblies (see Clause?20);

n)?????? filter assemblies (see Clause?21);

o)?????? fittings (see Clause?22);

p)?????? non-metallic, low-pressure rigid fuel lines (see Clause?23);

q)?????? discharge line closures (see Clause?24).

NOTE??????????? Other components not specifically identified here can be examined to meet the criteria of ISO 19887-1 and tested according to the appropriate functional needs.

This document applies to components that have a nominal working pressure, as specified by the manufacturer, of 25?MPa, 35?MPa, 50?MPa, or 70?MPa at 15?°C, referred to in this document as the following pressure classes:

a)?????? “H25” – 25?MPa;

b)?????? “H35” – 35?MPa;

c)??????? “H50” – 50?MPa; and

d)?????? “H70” – 70?MPa.

Other nominal working pressures for hydrogen gas besides those defined can be used if the qualification test requirements of this document are met.

This document also applies to components downstream of the first stage of pressure reduction with a maximum operating pressure designated by the manufacturer in?MPa or kPa.

This document does not apply to the following:

a)?????? hydrogen gas fuel system components incorporated during the manufacture of motor vehicles originally manufactured in compliance with the international regulations on hydrogen and fuel cell vehicles, such as UN GTR No. 13, UN Regulation No. 134, UN Regulation No. 146, or IEC 62282-4-101;

b)?????? fuel containers;

c)??????? stationary power generation applications;

d)?????? container mounting hardware;

e)?????? electronic fuel management;

f)???????? refuelling receptacles; or

g)?????? components intended for liquid hydrogen.

Edition	2024
Standard Part No	1
Published Date	2024
Published By	International Standardization Organisation
Page Count	78