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Table 14. Heavy metal limits in European countries and America, mg/kg

Countries Quality Standard Cd Cr Cu Hg Ni Pb Zn

Biowaste Regulation
Austria 1 70 150 0.7 60 120 500
Class A

Belgium (FL) Ministry of Agriculture 1.5 70 90 1 20 120 300
Denmark Ministry of Agriculture 0.4 - 1000 0.8 30 120 4000

Biowaste Regulation
Germany 1.5 100 100 1 50 150 400
Type II
Ireland Draft 1.5 100 100 1 50 150 350

Luxembourg Ministry of Environment 1.5 100 100 1 50 150 400
Holland Second Class Compost 1 50 60 0.3 20 100 200

Spain A Class 2 100 100 1 60 150 400
Quality Assurance
Sweden 1 100 100 1 50 100 300
Organization
England TCA Quality Label 1.5 100 200 1 50 150 400

Türkiye By-law 30341 3 350 450 5 120 150 1100
America ABD EPA 503 39 - 1500 17 420 300 2800

Table 15. Holding times at the required temperature to hygiene compost to be used during
biological process in some European countries and America

Countries Hygiene Temperature, °C Holding Time, Day

Belgium 60 4

Denmark 55 14
Italy 55 3

Holland 55 4
Austria 65 6

Cuba 55 3
Korea 55 3
England 55 3

Spain 55 3
America 55 3

The standard for labeling compost was prepared in the European Union on December 31, 1994.

In this context, standards have been developed for soil improvers. On the label of the compost
produced according to this standard, the manufacturer, the person, the properties of the compost,

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