Ministerie van Verkeer en Waterstaat 
Ri jks waters taat 
Oil Spill Identification - 
Round Robin 2005 
The comparison of four bilge samples 
3 May 2006 
PW-plot 2005009375 extract I vs. source I 
120 
5? 100 
ro 80 
60 
40 
20 
0 
10 
15 20 
n-alkane number 
25 
♦ Extract I 
30 
PW-plot 2005009375 extract II vs. source I 
120 
3? 100 
ro 80 
! » 
c 
£ 40 
o 
= 20 
0 
10 
15 20 
n-alkane number 
25 
♦ Extract I 
30 
PW-plot 2005009375 extract I vs. source II 
140 
120 
100 
80 
60 
40 
20 
0 
♦♦♦ 
♦ Extract I 
10 
15 20 
n-alkane number 
25 
PW-plot 2005009375 extract II vs. source II 
120 
3? 100 
ro 80 
! » 
(0 
40 
= 20 
0 
♦ ♦ 
♦ Extract I 
10 
15 20 
n-alkane number 
25