Skip to main content
Heritage Science

Table 2 Quantitative TG results of the putty samples

From: Characterizing the sealing materials of the merchant ship Nanhai I of the Southern Song Dynasty

 

Weight loss (150–400 °C)

Weight loss (400–500 °C)a

Weight loss (600–800 °C)

Calculated ratio of Ca(OH)2/organics

Sample A (grey layer)

3.7%

6.1%

27.6%

4.3

Sample A (white + black layer)

1.6%

1.8%

15.7%

7.1

Sample B (yellow layer)

3.8%

4.8%

34.8%

6.2

Sample B (white layer)

3.0%

3.8%

35.2%

7.9

Sample C

6.4%

4.0%

20.4%

3.1

  1. aThe range for sample A (white + black layer) is 400–478 °C and that for sample B (yellow layer) is 400–496 °C due to evident weight losses of impurities at around 490–500 °C
Back to article page