Global pollution has reached a level that threatens the life of all living things. Nowadays, environmental awareness is increasing and manufacturing companies are struggling to produce environmentally sensitive products. For textile companies exporting to developed countries, the fact that textile products are organic has become increasingly important. The damages of production using known methods are known and the importance of organic production is increasing.

Polychlorinated biphenyls are organic compounds consisting of 1 and 10 chlorine atoms attached to a molecule biphenyl. Biphenyls are composed of two benzene rings, each having six carbon atoms.

Polychlorinated biphenyls have many uses. For example, it is used as coolant and insulation liquid for capacitors and transformers. It is also used as a stabilizing additive in flexible PVC coatings of electronic equipment and electrical cables. It is used in paints and adhesives in textile sector. It is also used as an additive for pesticides with regard to the textile sector.

The production of polychlorinated biphenyls was prohibited in 1970 by considering their toxic properties. This substance accumulates in the bodies of animals, causes environmental pollution and causes permanent organic contamination.

Therefore, polychlorinated biphenyls should not be found in textile products. Among the chemical and ecological tests carried out in the laboratories accredited within the scope of TS EN ISO / IEC 17025 standard from domestic or foreign accreditation organizations, some tests are carried out to determine the amount of polychlorinated biphenyls in textile products. These studies are based on the following standards:

• EPA Method 8270C Semi-organic compounds by gas chromatography or mass spectrometry
• DIN 51527-1 Test of petroleum products - Determination of polychlorinated biphenyls (PCB) - Determination of certain selected PCB compounds by liquid chromatography by gas chromatography using electron capture detector
• EPA Method 3545A (SW-846) Pressurized liquid extraction (PFE)