HP FP9419 User Manual download pdf (Page 60)

Agency Regulatory Notices

C–8 User’s Guide

Environmental 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 fetus 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.

1. 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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HP FP9419 User Manual Page 60