ASTM D 4004 - 06 (Reapproved 2017) Standard Test Methods for Rubber - Determination of Metal Content by Flame Atomic Absorption (AAS) Analysis

Current edition approved May 1, 2017. Published May 2017. Originally approved in 1981. Last previous edition approved in 2012 as D4004 – 06 (2012). — 6 p.
These test methods cover the determination of lead, zinc, copper, and manganese in raw rubber and rubber compounds, vulcanized or unvulcanized. The level at which the metals are present is taken into account by suitable adjustments of sample mass and dilution.
Certain compounding ingredients, present in the rubber sample will dictate which of the methods should be used.