HP Workstation x1000 User Manual page 32

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HP 18.1" LCD Color Monitor User's Guide
TCO 99 - Ecology Energy Emissions Ergonomics
Environmental requirements
Flame retardants
Flame retardants are present in printed circuit boards, cables, wires, casings and housings. Their purpose is to
prevent, or at least to delay the spread of fire. Up to 30% of the plastic in a computer casing can consist of flame
retardant substances. Most flame retardants contain bromine or chloride, and those flame retardants are
chemically related to another group of environmental toxins, PCBs. Both the flame retardants containing
bromine or chloride and the PCBs are suspected of giving rise to severe health effects, including reproductive
damage in fish-eating birds and mammals, due to the bio-accumulative
found in human blood and researchers fear that disturbances in foetus development may occur.
The relevant TCO'99 demand requires that plastic components weighing more than 25 grams must not contain
flame retardants with organically bound bromine or chlorine. Flame retardants are allowed in the printed circuit
boards since no substitutes are available.
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Cadmium
Cadmium is present in rechargeable batteries and in the colour-generating layers of certain computer monitors.
Cadmium damages the nervous system and is toxic in high doses. The relevant TCO'99 requirement states that
batteries, the colour-generating layers of monitor screens and the electrical or electronics components must not
contain any cadmium.
2.
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.
CFCs (freons)
The relevant TCO'99 requirement states that neither CFCs nor HCFCs may be used during the manufacture and
assembly of the product. CFCs (freons) are sometimes used for washing printed circuit boards. CFCs break
down ozone and thereby damage the ozone layer in the stratosphere, causing increased reception on earth of
ultraviolet light with e.g. increased risks of skin cancer (malignant melanoma) as a consequence.
2.
Lead
Lead can be found in picture tubes, monitor screens, solders and capacitors. Lead damages the nervous system
and in higher doses, causes lead poisoning. The relevant TCO´99 requirement permits the inclusion of lead since
no replacement has yet been developed.
1. Bio-accumulative is defined as substances which accommodate within living organisms.
2. Lead, Cadmium and Mercury are heavy metals which are Bio-accumulative
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processes. Flame retardants have been