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Environmental Requirements
housings. In turn, they delay the spread of fire. Up to thirty percent of the plastic in a computer
environmental toxins, PCBs, which are suspected to give rise to similar harm, including reproductive
retardants have been found in human blood and researchers fear that disturbances in foetus
development may occur.
contain organically bound chlorine and bromine.
Lead can be found in picture tubes, display screens, solders and capacitors. Lead damages the
nervous system and in higher doses, causes lead poisoning.
Cadmium')
Cadmium is present in rechargeable batteries and in the colourgenerating layers of certain computer
displays. Cadmium damages the nervous system and is toxic in high doses.
cadmium. The colour-generating layers of display screens must not contain any cadmium.
Mercury is sometimes found in batteries, relays and switches. Mercury damages the nervous
system and is toxic in high doses.
of mercury. It also demands that no mercury is present in any of the electrical or electronics
components concerned with the display unit.
expanded foam for packaging. CFCs break down ozone and
thereby damage the ozone layer in the stratosphere, causing increased reception on Earth of
ultraviolet light with consequent increased risks of skin cancer (malignant melanoma).
The relevant TCO'95 requirement: Neither CFCs nor HCFCs may be used during the
manufacturing of the product or its packaging.
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