8 Analysis for bioavailable heavy metals

Analysis of chemical substances in balloons

The analysis results of the three balloon types selected for determination of release of heavy metals according to DS/EN 71-3, appear from Table 8.1.

Table 8.1 Bioavailable heavy metal according to DS/EN 71-3

Lab. mark.	R32960-5	R32960-10	R32960-12
Sample mark.	Balloon no. 10	Balloon no. 16	Balloon no. 20
Element				Detection limit
Sb mg/kg	-	-	-	6
As mg/kg	-	-	-	2,5
Ba mg/kg	-	-	-	25
Cd mg/kg	-	-	-	5
Cr mg/kg	-	-	-	2,5
Pb mg/kg	-	-	-	9
Hg mg/kg	-	-	-	2,5
Se mg/kg	-	-	-	50
Ni mg/kg	-	-	-	2

”-” less than the detection limit, which is 1/10 of the requirement value in the standard

Ni is not comprised by the standard but is included in the analysis.

As can be seen from Table 8.1, bio available heavy metals have not been detected in the analysed balloons, which means that no heavy metal-based accelerators (e.g. nickel dithiocarbamate salts) nor colorants have been used in the manufacture of the balloons.