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HJ 1239.1-2021 English PDF (HJ1239.1-2021)

HJ 1239.1-2021 English PDF (HJ1239.1-2021)

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HJ 1239.1-2021: Technical specification for emission remote supervision system of heavy-duty vehicles - Part 1: On-board terminal
This standard specifies the technical requirements for on-board terminals of emission remote monitoring systems of heavy-duty vehicle, including functions, performance requirements, test methods. This standard applies to equipment, which is installed on heavy-duty vehicles, for collecting, storing, transmitting vehicle and #39;s OBD information and engine emission data.

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