Table 4 Characteristic ratios calculated from the Py-GC/MS TIC and EIC chromatograms of the 2016 paint layers after 9 weeks of curing and of the 2006 paint layers after 12 weeks of artificial ageing, at high and low RH%. Talens (TA), Old Holland (OH) and Winsor&Newton (WN). Replicate measurements performed on one sample indicated typical RSD of 3%.

From: On the influence of relative humidity on the oxidation and hydrolysis of fresh and aged oil paints

 

TA 2016

TA 2006

OH 2016

OH 2006

WN 2016

WN 2006

High RH%

Low RH%

High RH%

Low RH%

High RH%

Low RH%

High RH%

Low RH%

High RH%

Low RH%

High RH%

Low RH%

A/P

0.6

0.7

2.2

1.0

1.7

1.7

1.5

0.7

1.1

1.4

1.0

1.3

A/S

0.6

0.7

1.0

0.9

2.0

2.0

1.0

0.7

2.1

2.7

1.9

2.4

P/S

1.0

1.0

0.4

0.9

1.2

1.2

0.7

0.9

2.0

2.0

1.8

1.8

FA(OH)/S

0.5

0.2

0.3

0.2

0.7

0.6

0.6

0.2

1.1

1.2

0.7

0.6