Выдержка с сайта CLIMAX - одного из крупнейших производителей лески в Европе.

Label
Eye up your purchase. Do not believe everything that a new wonder line promises and instead check out the critical diameter and breaking strain information. Unfortunately they are still very much exaggerated, often far beyond the technically feasible limits. For years CLIMAX has been working actively with other manufacturers on a European solution to this false labeling and is amongst some of the first signatories of the EFTTA Line Charter which is addressing this problem.
Tip: 3.5kg to 4kg breaking load with 0.20 mm diameter is regarded as a reliable reference for a very, very good monofilament line. Significantly higher data suggest mis-labelling. If you want to find out more, visit the EFTTA website (www.eftta.com) on which regularly conducted laboratory tests results and ‘black sheep’ are published.

Ссылка: http://www.climax-fishingline.de/EN/monofilament.html