Laboratory Dry weight
of painta (mg∙cm)-2
Paint thicknessb (µm)
mean Std. dev.
1 NR
NR
46.3
40.8
6.2
6.5
2 15.3
13.5
89.5c
83.5c
_
_
3 10.8
10.1
53.0
56.1
6.5
5.4
4 8.2
7.4
39.1
SNR
4.7
_
5 31
33
107
123
15
16
6 10
13
43.4
65.6
5.3
9.2
7 17.7
17.3
15
15
58.7
50.8
56.9
52.1
3.3
3.5
1.6
1.4
8 NR
NR
80.8
59.0
13.5
7.8
9 12.5
9.5
60.8
52.2
4.5
5.5
10 30
30
103
SNR
13
_
11 51.7
_
56.0
_
5.5
_
12 8.4
9.0
65.2
65.0
8.9
4.9
13 10.3
10.2
68.6
60.2
2.4
2.7
14 11.5
11.5
69.3
64.7
4.9
4.5
15 _
28.9
_
SNR
_
_
16 21
22
SNR
SNR
_
_
17 12.3
_
SNR
_
_
_
18 26.8 70.6 18.0
Mean of all runsd,e            18.9 ± 11.6
Mean of selected runs      12.1 ± 2.9                           60.5d
a. Reported by the participants; NR = not reported.
b. Measured at the Environment Institute (Ispra) by digital film gauge; SNR =
sample not received.
c. Glass plate, measurement by material profiling technique.
d. Runs for which the mean paint thickness was in the range between 50.8 and 70.6 μm.
e. With exception of the two values reported by laboratories ns. 11 and 18, which are outliers
Table 4: Thickness of the paint samples (adopted and modified from ECA report no 16, 1995 [25]).