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SE-114 94 Stockholm, Sweden 

Fax: +46 8 782 92 07 

Email (Internet): development@tco.se 

Current information regarding TCO'99 approved and labelled 

products may also be   

obtained via the Internet, using the address: 

http://www.tco-info.com/

 

 

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

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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 is present in rechargeable batteries and in the