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Heritage Science

Table 1 List of samples

From: Carbon dioxide snow cleaning of paper

Soiling

Type

Paper

Whatman

Holmen

Archival

None

–

X

X

 

Artificial

PM1

X

  

Ammonium sulphate

X

  

Soot

X

  

Library Dust

X

X

 

Ashrae Dust

X

X

 

Ivory Black

X

X

 

Natural

–

  

X

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