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See Chinese contents: GB/T 41328-2022 GB/T 41328-2022: Biogas-based natural gas
This document specifies the technical requirements for biogas-based natural gas, determines the sampling and inspection rules for biogas-based natural gas, and provides the test methods and requirements for transport, marking, storage and transportation, and safety of use of biogas-based natural gas. This document applies to natural gas produced by purification or methanation process of methane-containing feedstock gas such as biogas, biomass pyrolysis gas, and landfill gas.
