What is BS 3900-B4 - Liquid paints and dried paint films about?
BS 3900-B4 discusses test methods for paints. The aim of the BS 3900-B series is to provide the best industrial practice to determine the metal content in paint by the spectrometric method.
BS 3900-4 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 to 2 % (m/m).
Two methods are given for the treatment of the test portion; the dry ashing method 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 ISO 3856/1 may be used as an alternative method.
Who is BS 3900-B4 Liquid paints and dried paint films for?
BS 3900-B4 on liquid paints and dried paint films is useful for:
- Paint manufacturers
- Testing laboratories
- Quality control personnel
Why should you use BS 3900-B4 - Liquid paints and dried paint films?
Lead (II) carbonate which is commonly referred to as white lead when added to paint turned the paint either white or cream in colour while the addition of lead tetroxide compounds turned the paint into a bright red paint.
BS 3900-B4 describes a laboratory method for determining the lead in liquid paints and dried paint films. BS 3900-B4 covers the principle of the test method, reagents and materials, procedure, expression of result, and test report. This can help to determine the quantity of lead present that aids in determining the colour characteristics of the liquid paints and dried paint films.
