GB21522-2024

Emission standard of coalbed methane/coal mine gas

煤层气（煤矿瓦斯）排放标准

GB 21522-2024 is a current mandatory Chinese national standard for Emission standard of coalbed methane/coal mine gas. It appears in the Chemicals compliance cluster with a product safety focus and has an implementation date of Apr 1, 2025.

Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.