ISO 19246:2016规定了使用己二酸二-（2-乙基己基）酯（DOA，CAS 103-23-1）测定颜料和填充剂液体吸收能力的一般方法。通过配备扭矩测量和处理系统的吸收计来确定DOA吸收数。DOA吸收数表示颜料和填充剂的聚集体和凝聚体形成的空隙体积。

ISO 19246:2016 specifies a general method for determining the liquid absorption capacity of a pigment and extender by using di-(2-ethylhexyl) adipate (DOA, CAS 103-23-1). The determination of the DOA absorption number is performed by means of an absorptometer which is equipped with a torque measurement and processing system. The DOA absorption number provides an indication of the void volume formed by the aggregates and agglomerates of the pigments and extenders.