Henna Väänänen

Determination of formaldehyde (CAS 50-00-0) content in cold or hot water extracts of paper or board. The method is suitable, for example, for an analysis of formaldehyde migration by the German BfR Recommendation XXXVI. The migration limit for formaldehyde is 1.0 mg/dm² of paper or board. Formaldehyde is used in various chemicals and additives that are used in paper and board production.

Content of 15 polycyclic aromatic hydrocarbons (PAHs) in paper and paperboard according to AfPS GS 2019:01 PAK. The test package includes the following substances: Naphthalene [CAS: 91-20-3], Acenaphthylene [CAS: 208-96-8], Acenaphthene [CAS: 83-32-9], Fluorene [CAS: 86-73-7], Phenanthrene [CAS: 85-01-8], Anthracene [CAS: 120-12-7], Fluoranthene [CAS: 206-44-0], Pyrene [CAS: 129-00-0], Benzo(a)anthracene [CAS: 56-55-3], Chrysene [CAS: 218-01-9], Benzo(b)fluoranthene [CAS: 205-99-2], Benzo(k)fluoranthene [CAS: 207-08-9], Benzo(j)fluoranthene [CAS: 205-82-3], Benzo(e)pyrene [CAS: 192-97-2], Benzo(a)pyrene [benzo(def)chrysene] [CAS: 50-32- 8], Indeno(1,2,3-cd)pyrene [CAS: 193-39-5], Dibenzo(a,h)anthracene [CAS: 53-70-3], Benzo(g,h,i)perylene [CAS: 191-24-2].

Glyoxal (CAS 107-22-2) can be used as a cross-linker in paper, board, corrugated board, and textile products. According to German BfR Recommendation XXXVI on paper and board food contact materials, the extract of the finished product must not contain more than 1.5 mg of glyoxal per dm2.

Glutaraldehyde is a slimicide used to control microbial growth in paper and paperboard packaging. Its use in food packaging is allowed according to BfR XXXVI, however, no more than 2 mg of glutaraldehyde must be detectable in 1 kg of the finished product.