Examples of substances which may cause a waste to exhibit HP 12 and their threshold concentrations

Commission notice on technical guidance on the classification of waste · European Union

Substance name Hazard Statement Codes Equation Concentration limits for waste to be HP 12 (%) (37) Phosphorous pentasulphide EUH029 P2S5 + 8H2O → 5H2S + 2H3PO4 0,1 3,5-dichloro-2,4-difluoro-benzoyl fluoride (DCDFBF) EUH029 DCDFBF + H2O → HF + Prod. 1,0 Metam-sodium EUH031 CH3NHCS2Na + H+ → CH3NH2 + CS2 + Na+ 0,5 Barium sulphide EUH031 BaS + 2H+ → H2S + Ba2+ 0,8 Barium polysulphides EUH031 BaSn + 2H+ → H2S + Ba2+ + Sn–1 0,8 Calcium sulphide EUH031 CaS + 2H+ → H2S + Ca2+ 0,3 Calcium polysulphides EUH031 CaSn + 2H+ → H2S + Ca2+ + Sn–1 0,3 Potassium sulphide EUH031 K2S + 2H+ → H2S + 2K+ 0,5 Ammonium polysulphides EUH031 (NH4)2Sn + 2H+ → H2S + 2NH4 + + Sn–1 0,3 Sodium sulphide EUH031 Na2S + 2H+ → H2S + 2Na+ 0,4 Sodium polysulphides EUH031 Na2Sn + 2H+ → H2S + 2Na+ + Sn–1 0,4 Sodium dithionite EUH031 Na2O6S2 + 2H+ → 2Na+ + SO2 + H2SO4 0,9 Sodium hypochlorite, solution Cl active (38) EUH031 2NaOCl + 2H+ → Cl2 + 2Na+ + H2O 2,9 Calcium hypochlorite, solution Cl active (38) EUH031 Ca(OCl)2 + 2H+ → Cl2 + Ca2+ + H2O 0,6 Dichloroisocyanuric acid EUH031 C3HCl2N3O3 + 2H+ → C3H3N3O3 + Cl2 0,9 Dichloroisocyanuric acid, sodium salt of EUH031 C3Cl2N3O3Na + 3H+ → C3H3N3O3 + Cl2 + Na+ 1,0 Sodium dichloroisocyanurate, dehydrate EUH031 C3Cl2N3O3Na · 2H2O + 3H+ → C3H3N3O3 + Cl2 + Na+ + 2H2O 1,1 Trichloroisocyanuric acid EUH031 2C3Cl3N3O3 + 6H+ → 2C3H3N3O3 + 3Cl2 0,7 Hydrogen cyanide, salts of (with the exception of complex cyanides such as ferrocyanides, ferricyanides and mercuric oxycyanide) EUH032 NaCN + H+ → HCN + Na+ 0,2 Sodium fluoride EUH032 NaF + H+ → HF + Na+ 0,2 Sodium azide EUH032 NaN3 + H+ + H2O → NO2 + NH3 + Na+ 0,3 Trizinc disphosphide EUH032 Zn3P2 + 6H+ → 2PH3 + 3Zn2+ 0,6 Calcium cyanide EUH032 Ca(CN)2 + 2H+ → 2HCN + Ca2+ 0,2 Cadmium cyanide EUH032 Cd(CN)2 + 2H+ → 2HCN + Cd2+ 0,4 Aluminium phosphide EUH029 AlP + 3H+ → PH3 + Al3+ 0,3 EUH032 AlP + 3H2O → PH3 + Al(OH)3 0,3 Calcium phosphide EUH029 Ca3P2 + 6H2O → 2PH3 + 3Ca(OH)2 0,4 Magnesium phosphide EUH029 EUH032 Mg3P2 + 6H2O → 2PH3 + 3Mg(OH)2 0,3 Trizinc diphosphide EUH029 EUH032 Zn3P2 + 6H2O → 2PH3 + 3Zn(OH)2 0,6

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Source: EUR-Lex (Cellar) · retrieved 2026-09-07