This part of ISO 3856 specifies a flame atomic emission spectroscopic (AES) method for the determination of the barium content of the test solutions prepared according to ISO 6713 or other suitable International Standards.1).
The method is applicable to paints having "soluble" metal contents in the range of about 0,05 to 5 % (m/m).
Other methods can be used by agreement between the interested parties but, in case of dispute, this method should be used.