BS ISO 19724:2020 pdf free

04-23-2021 comment

BS ISO 19724:2020 pdf free.Gasoline engines with direct injection — Cleanlinessassessment of fuel injection equipment.
This document specifies cleanliness assessment procedures for evaluating the amount of debris presenton the clean side of the constituent parts of high-pressure gasoline direct fuel injection systems. Thepresence of such debris could lead to a reduction in the system’s operational performance.
While other International Standards (e.g. IS0 16232) relate to the cleanliness of different types ofcomponents used in road vehicle fluid circuits, this document focuses on the special procedures appliedfor the components of gasoline direct fuel injection systems.
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document.For dated references, only the edition cited applies. Forundated references, the latest edition of the referenced document(including any amendments) applies.
All tests shall be carried out in a clean laboratory environment. Failure to achieve a satisfactory blanktest level of contamination could indicate unsuitable control of test conditions.Clean room conditionsaccording to ISO 14644-1, class 8, are recommended as a minimum for these procedures.
The appropriate method to determine the required amount of fluid is by use of an extraction curve(declining test), as described in ISO 16232:2018, and B.1. In order to avoid each laboratoryfinding a different amount of fluid to be required, a guideline for the volume is given here for eachcomponent.
The blank level tests described in IS0 16232:2018,6.3, are important procedures to check the quality ofthe laboratory equipment and shall be carried out once a week.Before starting the test procedure, the outer surface of the component or assembly shall be thoroughlycleaned by using a fluid like for the cleanliness assessment.The following conditions are valid for all the components of the injection equipment.一Medium: Gasoline test fluid (hydrocarbon similar to gasoline).For such components which during the production process did not come into contact withhydrocarbons, deionised water according to IS0 3696, Grade 3 with detergent is also possible (e.g.for pipes, rails, high pressure sensors).BS ISO 19724 pdf download.

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