BS ISO 20766-11:2020 pdf free.Road vehicles一Liquefied petroleum gas (LPG) fuel systems components.
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 20766-1, Road vehicles一Liquefied petroleum gas (LPG) fuel systems components一Part 1: General requirements and definitions ISO 20766-2， Road vehicles 一Liquefied petroleum gas (LPG) fuel systems components 一Part 2: Performance and general test methods.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 working pressure and temperature range. The following additional markings are recommended: the direction of flow (when necessary for correct installation); the flow capacity the type of fuel; the electrical ratings (if applicable); the symbol of the certification agency; the type approval number; the serial number or date code; 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.A manual shut-off valve is to be tested with the valve outlet plugged, the body of the valve filled with n-hexane, and the valve inlet subjected to a pressure of 3 000 kPa or at WP, whichever is greater, in accordance with the classification pressure of the valve. The test is to be conducted at a rate not faster than 10 times per minute. The closing torque is to be consistent with the size of handwheel, wrench, or other means employed to operate the valve. The LPG manual shut off valve shall remain leak-proof when tested according 6.3 after being tested for 10 000 cycles.BS ISO 20766-11 pdf download.