BS 1747-13:1994 Methods for measurement of air pollution. Determination of the particulate lead content of aerosols collected on filters: atomic absorption spectrometric method
Deposits greater than 1$Gm, with an option for those less than 1$Gm.
BS 1747-13:1994 history
1994BS 1747-13:1994 Methods for measurement of air pollution. Determination of the particulate lead content of aerosols collected on filters: atomic absorption spectrometric method