METHODS OF TEST FOR PAINTS AND VARNISHES: PART B4: DETERMINATION OF TOTALLEAD BY FLAME ATOMIC ABSORPTION SPECTROMETRIC METHOD (FIRST REVISION)
This Malaysian Standard describes a flame atomic absorption spectrometric method for the determination of total lead in paints and related products.
The method is applicable to products having total lead contents in the range of about 0.01 to2% (m/m) (Note 1).
Two methods are given for the treatment of the test portion; the dry ashing method (Clause 4) should be used as the referee method in cases of dispute.
For the determination of lead in the test solution, the dithizone spectrophotometric method specified in MS 133 : Part B5 may be used as an alternative method.
NOTE 1. This method may also be applicable to products with a total lead content of more than 2 % (m/m), but itshould only be used when the precision does not exceed the appropriate values given in Clause 7.2.
