Regulation (EU) No 1007/2011 of the European Parliament and of the CouncilShow full title

3. APPARATUS AND REAGENTS (other than those specified in the general instructions) U.K.

3.1. Apparatus U.K.

Glass-stoppered conical flask of at least 200 ml capacity.

3.2. Reagents U.K.

(a) Sulphuric acid (75 ± 2 % m/m) U.K.

Prepare by adding carefully, while cooling, 700 ml sulphuric acid (relative density at 20 °C: 1,84) to 350 ml distilled water.

After cooling to room temperature, dilute the solution to 1 litre with water.

(b) Sulphuric acid, dilute solution: add 100 ml sulphuric acid (relative density at 20 °C: 1,84) slowly to 1 900 ml distilled water. U.K.

(c) Ammonia, dilute solution: dilute 200 ml concentrated ammonia (relative density at 20 °C: 0,880) to 1 litre with water. U.K.