Pulp and Paper Institute, Bogišićeva 8, 1000 Ljubljana, SL

Chemical and microbiological properties

Chemical properties

Chemical analysis of the materials  are performed for the purpose of monitoring the quality of products for the needs of the producers, as well as for the needs of suppliers and end users. Chemical analysis are also performed for the assessment of the adequacy of the materials/products for contact with food and for hygiene products. We can determine: heavy metals and other hazardous substances such as formaldehyde, glyoxal, n-heptane extract, presence of carbonless copy papers, the adsorbed organic halogens (AOX), pentachlorophenol (PCP), polychlorinated biphenyls (PCBs) and others.

For the needs of the paper industry we performe analysis for various chemical characterization of interfering substances which can negatively affect in paper production and quality of the product. We analyse deposits, stickies, process chemicals, wood resins, stains and tearing in the paper, synthetic polymers and other substances that can cause problems in production.

Water quality is very important factor in the paper industry. ICP is qualified for analysis of industrial and waste waters. Our range of chemical and biological methods for testing of wastewaters meets the requirements for monitoring of the operation of water treatment plants and provides information for further optimization of their performance.


Microbiological properties

Microbiological tests determine the presence of the microorganisms in the raw materials, additives, within the production process and on the surface of the product. We evaluate the effectiveness of the biocide system or the operation of the water  treatment plant.

By microbiological testing we determine the presence of the microorganisms causing problems in the production process (smell, deposits, colour change, change in viscosity) and presence of microorganisms in the final product which is especially important in tissue paper and paper intended for food contact.

Many microorganisms are also involved in the process of water cleaning in the waste water treatment plants. Composition of the sludge and the presence of various organisms in the activated sludge are indicators about the effective operation of waste water treatment plants. Analyses related to certain microorganisms provide for estimation of potential change on waste water treatment plants.and  a timely response

We offer determination of different groups of microorganisms in the production process, additives and final product, as well as analysis for determination of microorganisms in the activated sludge.

Bojan Borin

T: +386 1 200 28 15