DB31/T 1140-2019 Active

This standard specifies the statistical scope and calculation method of carbon emission indicators for industrial gas products, as well as the unit product carbon emission indicators. This standard applies to the calculation and evaluation of carbon emission indicators for air separation products (oxygen and nitrogen) produced and sold by using cryogenic and pressure swing adsorption methods. It does not apply to the assessment of enterprises that produce air separation products for their own use, equipment that produces air separation products using membrane separation methods, or pure liquefaction equipment. This standard applies to the calculation and evaluation of carbon emission indicators for syngas products produced and sold by using steam reforming as the main raw material, and does not apply to syngas products produced by other methods.