Viewsonic VA503M Инструкция по эксплуатации онлайн [4/26] 97392

ViewSonic VA503m/VA503b ii

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

E-mail: development@tco.se

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, delay the spread of fire. Up to 30% of the 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). Flame retardants containing bromine or chlorine and the PCBs

are suspected of giving rise to health effects, including reproductive damage in fisheating birds

and mammals, due to the bio-accumulative* processes when these are not disposed of in

accordance with the 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, except

for two types of brominated flame retardants (PBB and PBDE), which are not allowed in the

product at all.

Cadmium**

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

computer displays.

TCO’99 requires that the product including batteries shall not contain any cadmium.

Mercury**

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

product including batteries shall not contain any mercury. There is, however, one exception.

Mercury is, for the time being, permitted in the back light system of flat panel monitors as

there is currently no commercially available alternative. TCO aims to remove this exception

when a mercury free alternative is available.

Lead**

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

that the product including batteries shall not contain any lead.

Hexavalent chromium**

Hexavalent chromium is sometimes used as surface treatment. TCO’99 requires that the

product shall not contain any hexavalent chromium.

* Bio-accumulative is defined as substances which accumulate in living organisms.

**Lead, Cadmium and Mercury are heavy metals which are bio-accumulative.