In 1989, CONEG developed a new toxics legislation with the aim of prohibiting the intentional addition of lead, cadmium, chromium (V1), and mercury to packaging and packaging materials, fixing as a sum of these elements a scale of tolerable limit values, up to a final target of 100ppm to be finally reached in 1994. This paper looks at a closed-system decompositon procedure. Mercury is analyzed by cold vapour atomic absorption spectrometry. This procedure has given excellent results allowing the total recovery of mercury contained in the glass decomposition solutions.
Origin
Staz Sper Del Vetro, Italy
Journal Title
Glastech Ber 66 4 1993 100-104
Sector
Container glass
Class
C 558