Nec ACCUSYNC LCD52V User Manual download pdf (Page 20)

TCO’99 –continued

Below you will ﬁnd a brief summary of the ecological requirements met by this product. The

complete ecological criteria document can be found at TCO Development’s website http://www.

tcodevelopment.com or may be ordered from:

TCO Development

SE-114 94 STOCKHOLM, Sweden

Fax: +46 8 782 92 07

Information regarding TCO’99 approved and labelled products may also be obtained at

http://www.tcodevelopment.com

Ecological requirements

Flame retardants

Flame retardants may be present in printed wiring board laminates, cables, and housings. Their

purpose is to prevent, or at least to delay the spread of ﬁre. Up to 30% by weight of the plastic

in a computer casing can consist of ﬂame retardant substances. Many ﬂame retardants contain

bromine or chlorine, and these ﬂame retardants are chemically related to PCBs (polychlorinated

biphenyls). Both the ﬂame retardants containing bromine or chlorine and the PCBs are suspected

of giving rise to health effects, including reproductive damage in ﬁsh-eating birds and mammals,

due to the bio-accumulative* processes when not disposed of in accordance with strict standards

for disposal.

TCO’99 requires that plastic components weighing more than 25 grams shall not contain ﬂame

retardants with organically bound bromine or chlorine. Flame retardants are allowed in the printed

wiring board laminates due to the lack of commercially available alternatives.

Cadmium**

Cadmium is present in rechargeable batteries and in the colour-generating layers of certain com-

puter displays. TCO’99 requires that batteries, the colour-generating layers of display screens,

and the electrical or electronics components shall not contain any cadmium.

Mercury**

Mercury is sometimes found in batteries, relays and switches. TCO’99 requires that batteries shall

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.

Lead**

Lead can be found in picture tubes, display screens, solders and capacitors. TCO’99 permits the

use of lead due to the lack of commercially available alternatives, but in future requirements TCO

Development aims at restricting the use of lead.

*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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Nec ACCUSYNC LCD52V User Manual Page 20