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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.
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 today there is no commercially available alternative. TCO aims on
removing this exception when a Mercury free alternative is available.
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.
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.
TCO'03-Ecological requirements for personal computers (TCO'03 applied model
only)
Congratulations!
The display you have just purchased carries the TCO'03 Displays label. This means that
your display is designed, manufactured and tested according to some of the strictest
quality and environmental requirements in the world. This makes for a high performance
product, designed with the user in focus that also minimizes the impact on our natural
environment.
Some of the features of the TCO'03 Display requirements:
Ergonomics
Good visual ergonomics and image quality in order to improve the working environment for
the user and to reduce sight and strain problems. Important parameters are luminance,
contrast, resolution, reflectance, colour rendition and image stability.
Energy
z
Energy-saving mode after a certain time - beneficial both for the user and the
environment
z
Electrical safety
Emissions