3b412 | — | Copper(I) oxide | Characterisation of the additivePreparation of copper(I) oxide with- a minimum copper content of 73 %,
- Sodium lignosulfonates between 12 % and 17 %,
- 1 % Bentonite.
Granulated form with particles < 50 μm: below 10 %Characterisation of the active substanceCopper(I) oxideChemical formula: Cu2OCAS number: 1317-39-1Analytical methodsFor the identification of Cu2O in the additive:- X-Ray diffraction (XRD).
For the quantification of the total copper content in the additive:- Titrimetry; or
- Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) — EN 15510.
For the quantification of total copper content in premixtures:- Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) — EN 15510; or
- Inductively Coupled Plasma Atomic Emission Spectrometry after pressure digestion (ICP-AES) — EN 15621.
For the quantification of total copper content in feed materials and compound feed:- Atomic Absorption Spectrometry (AAS) — Commission Regulation (EC) No 152/2009; or
- Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) — EN 15510; or
- Inductively Coupled Plasma Atomic Emission Spectrometry after pressure digestion (ICP-AES) — EN 15621.
| All animal species | — | — | Bovines:- Bovines before the start of rumination: 15 (total);
- Other bovines: 35 (total).
Ovines: 15 (total).Piglets up to 12 weeks: 170 (total).Crustaceans: 50 (total).Other animals: 25 (total). | 1.The additive shall be incorporated into feed in the form of a premixture.2.For users of the additive and premixtures, feed business operators shall establish operational procedures and organisational measures to address potential risks by inhalation, dermal contact or eyes contact. Where those risks cannot be eliminated or reduced to a minimum level by such procedures and measures, the additive and premixtures shall be used with personal protective equipment, including breathing protection, safety glasses and gloves.3.The following words shall be included in the labelling:- For feed for sheep if the level of copper in the feed exceeds 10 mg/kg:"The level of copper in this feed may cause poisoning in certain breeds of sheep."
- For feed for bovines after the start of rumination if the level of copper in the feed is less than 20 mg/kg:"The level of copper in this feed may cause copper deficiencies in cattle grazing pastures with high contents of molybdenum or sulphur."
| 5 January 2027 |