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Standard and/or project under the direct responsibility of ISO/TC 263 Secretariat Stage ICS
ISO/DIS 4657
Assessment specification of coalbed methane resources
40.20
ISO 18871:2015
Method of determining coalbed methane content
90.60
ISO 18875:2015
Coalbed methane exploration and development — Terms and definitions
90.60
ISO/CD 23604
Method of determining specific surface area of coal
30.99

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