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Table 1 Commercial name, active principle and selected concentration of the tested products

From: Learning from the past, intervening in the present: the role of conservation science in the challenging restoration of the wall painting Marriage at Cana by Luca Longhi (Ravenna, Italy)

Commercial product

Active principle

Concentration for in vitro tests (%)

Concentration applied on the surface

Biotin T

Octylisothiazolinone; ammonium quaternary salt

0.5

Biotin T

Octylisothiazolinone; ammonium quaternary salt

1.5

 

Biotin T

Octylisothiazolinone; ammonium quaternary salt

3

Bio104

Octylisothiazolinone; ammonium quaternary salts

0.5

Bio104

Octylisothiazolinone; ammonium quaternary salts

1

 

Bio104

Octylisothiazolinone; ammonium quaternary salts

2

BC50

Ammonium quaternary salts

1

BC50

Ammonium quaternary salts

2

 

BC50

Ammonium quaternary salts

4

  1. In the last column, selected concentration of the same products applied on the painted surface are reported