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Table 1 Description and sizes of wood samples used in oxygen-consumption experiments

From: Oxidative degradation of archaeological wood and the effect of alum, iron and calcium salts

Sample name

Treatment/description

Vol. (cm3)

Fe

0.1 M FeCl2 treated birch, 3 samples

3

Fe-Ca

0.1 M FeCl2 + 0.1 M CaCl2 treated birch, 3 samples

3

Fe-2Ca

0.1 M FeCl2 + 0.2 M CaCl2 treated birch, 3 samples

3

Ref-ambient

Untreated birch immersed in water, 3 samples

3

Alum

Alum treated birch, 3 samples

3

al-Fe0.005

Alum + 0.005 M FeSO4 treated birch, 3 samples

3

al-Fe0.05

Alum + 0.05 M FeSO4 treated birch, 3 samples

3

al-Fe0.5

Alum + 0.5 M FeSO4 treated birch, 3 samples

3

Ref-heated

Untreated birch heated in water (as in alum treatment), 3 samples

3

Arch12-frag1

Archaeological birch treated with alum in 2012

27

Arch12-frag2

Archaeological birch treated with alum in 2012

9

Arch9-1-frag1

Archaeological birch treated with alum in 2012

19

Arch9-1-frag2

Archaeological birch treated with alum in 2012

16

oseberg-d11

Untreated, archaeological oak from Oseberg ship (two pieces 1 and 2)

7

Fresh Oak

Untreated fresh oak (two pieces, 1 and 2)

8

185-2

Alum-treated arch. diffuse porous wood from Oseberg, no other additives

9

185-5

Alum-treated arch. diffuse porous wood from Oseberg, no other additives

11

229-5-AR

Alum-treated arch. diffuse porous wood from Oseberg, no other additives

3

207-frag1

Alum-treated arch. diffuse porous wood from Oseberg, linseed oil coated

12

207-frag2

Alum-treated arch. diffuse porous wood from Oseberg, linseed oil coated

4

207-frag3

Alum-treated arch. diffuse porous wood from Oseberg, linseed oil coated

2

210-frag3

Alum-treated arch. ring porous wood from Oseberg, linseed oil soaked

4

210-frag7

Alum-treated arch. ring porous wood from Oseberg, linseed oil soaked

5

210-frag8

Alum-treated arch. ring porous wood from Oseberg, linseed oil soaked

4