ISO 17226-3:2011规定了一种从皮革中测定甲醛排放的方法。该方法基于高效液相色谱（HPLC）。它是选择性的，并且还允许观察其它低分子量的醛和酮的排放。 ISO 17226-3:2011涉及甲醛释放到气相。因此，所获得的结果与ISO 17726-1和ISO 17226-2中描述的基于用液体水萃取的方法的结果不相称

ISO 17226-3:2011 specifies a method for determining the emission of formaldehyde from leathers. This method is based on high performance liquid chromatography (HPLC). It is selective and also allows the emission of other low molecular aldehydes and ketones to be observed. ISO 17226-3:2011 deals with the release of formaldehyde to the gas phase. Therefore, the obtained results are not comparable with the results of methods described in ISO 17726-1 and ISO 17226-2 which are based on extraction with liquid water.