Brominated Flame Retardants

Appendix 6

Calculation of Brominated Flame Retardants in Housing of Electronics and Printed Circuit Boards

Table 1 shows the estimated consumption of BFRs with housing of TV- sets and office electronics. The number of units of office machines is derived from International Data Corporation /1 /. Number of units of TV sets is obtained from the trade organisation ConsumerElectronics. The contribution of the different groups of flame retardants are derived from test of units on the German market 1997 cf. table 4.6 and figure 4.3 in the main report.

Table 1
Content of brominated flame retardants in housing of office machines and TV sets sold in Denmark in 1997

The calculation of brominated flame retardants in printed circuit boards in EE equipment sold in Denmark in 1997 is shown in table 2. The number of units of office machines is derived from International Data Corporation /1/. Number of units of consumer electronics is obtained from the trade organi-sation ConsumerElectronics. Data on telecommunication equipment is derived from the trade statistics form Statistics Denmark. For the other groups 1993 data of Hansen et. al have been used /2/. The average area of printed circuit board per unit and the content of TBBPA are obtained from Hede-malm et al. 1995 /3/. It is roughly assumed that the printed circuit board of 30% of the consumer electronics (exc. TV-sets) is flame retarded with PBDEs.

Table 2
Content of brominated flame retardants in printed circuit boards in EE equipment sold in Denmark in 1997

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