腾树检测合作实验室具备 CMA/CNAS 双重资质,可依据 ISO5073:2021(E) 提供全项检测服务
腾树检测可依据 ISO5073:2021(E)《煤中腐植酸产率的测定方法This document specifies volumetric methods for the determination of total humic acids and free humic acid of brown coals and lignites Brown coals and lignites - Determination of humic acids》提供专业的第三方检测服务: