Compaq 5017 - Manual (Page 42)

D–4 Reference Guide
TCO ‘99
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Bioaccumulative is defined as substances which accumulate
within living organisms.
Cadmium
Cadmium is present in rechargeable batteries and in the
colour-generating layers of certain computer displays. Cadmium
damages the nervous system and is toxic in high doses. The
relevant TCO'99 requirement states that batteries, the
colour-generating layers of display screens and the electrical or
electronics components must not contain any cadmium.
✎
Cadmium is a heavy metal that is Bioaccumulative.
Mercury
Mercury is sometimes found in batteries, relays and switches. It
damages the nervous system and is toxic in high doses. The
relevant TCO'99 requirement states that batteries may not contain
any mercury. It also demands that mercury is not present in any of
the electrical or electronics components associated with the
labelled unit. There is however one exception. Mercury is, for the
time being, permitted in the back light system of flat panel
monitors as there today is no commercially available alternative.
TCO aims on removing this exception when a mercury free
alternative is available.
✎
Mercury is a heavy metal that is Bioaccumulative.