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GB/T 23249-2009 English PDF (GBT23249-2009)

GB/T 23249-2009 English PDF (GBT23249-2009)

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GB/T 23249-2009: Coalbed gas content measurement methods in geological exploration period
This Standard stipulates the terms and definitions, measurement methods, records and sample delivery, coal sample degassing and gas analysis, determination result calculation and evaluation of coalbed gas content in geological exploration period. This Standard is applicable to the determination of coalbed gas content and gas composition through coal core during the geological exploration period.

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