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 |