IS-LM100761_combo.fm Page 12 Tuesday, April 19, 2005 8:51 AM
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NVIRONMENTAL 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* processes. Flame retardants have been 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.
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 color-generating layers of display screens, and the electrical or
electronics components must not contain any cadmium.
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 increased risks of skin
cancer (malignant melanoma) as a consequence.
Lead**
Lead can be found in picture tubes, display 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.
* Bio-accumulative is defined as substances which accumulate within living
organisms.
** Lead, Cadmium, and Mercury are heavy metals which are
Bio-accumulative.
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IS-LM100761 15-inch Monitor