China National Standards

China General requirements interchangeability GB Standards List

  •  China "General requirements interchangeability" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 33440-2021 General requirements for interchangeability of natural gas
    天然气互换性一般要求    		 China National Standards
    General requirements interchangeability
    English PDF
    GB/Z 33440-2016 General requirements for interchangeability of natural gas entering long-distance pipeline network
    进入长输管网天然气互换性一般要求    		 China National Standards
    General requirements interchangeability
    English PDF

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