BS EN 15605-2010 pdf download.Copper and copper alloys Inductively coupled plasma optical emission spectrometry.
4.14 Beryllium stock solution, 1 g/l Be
Weigh (0,5 ± 0,001) g of beryllium (Be  99.99%) and transfer into a 250 ml beaker. Add 20 ml of hydrochloric acid (4.1) and cover with a watch gLass. Heat gently until the metal is dissolved. After cooling to room temperature, transfer the solution quantitatively into a 500 ml one-mark volumetric flask, dilute to the mark with water and mix well.
1 ml of this solution contains 1 mg of Be.
4.15 Cadmium stock solutIon, 1 g/l Cd
Weigh (1 ± 0,001) g of cadmium (Cd  99,99%) and transfer into a 400 ml beaker. Add 10 ml of nitric acid (4.3) and cover with a watch glass. Heat gently until the metal is dissolved, then boil until nitrous fumes have been expelled. After cooling to room temperature, transfer the solution quantitatively into a 1 000 ml one-mark volumetric flask, dilute to the mark with water and mix well.
1 ml of this solution contains 1 mg of Cd.
4.16 Cobalt stock solution. 5 g/l Co
Weigh (1 ± 0.001) g of cobalt (Co 99,99 %) and transfer into a 250 ml beaker. Add 10 ml of hydrochloric acid (4.1) and 10 ml of nitric acid (4.3) and cover with a watch glass. Heat gently until the metal is dissolved, then boil until nitrous fumes have been expelled, After cooling to room temperature. transfer the solution quantitatively into a 200 ml one-mark volumetric flask, dilute to the mark with water and mix well.
1 ml of this solution contains 5 mg of Co.
4.17 Cobalt stock solution, 1 g/l Co
Weigh (0,5 ± 0,001) g of cobalt (Co  99,99%) and transfer into a 250 ml beaker. Add 5 ml of hydrochloric acid (4.1) and 5 ml of nitric acid (4.3) and cover with a watch glass. Heat gently until the metal is dissolved, then boil until nitrous fumes have been expelled. After cooling to room temperature, transfer the solution quantitatively into a 500 ml one-mark volumetric flask, dilute to the mark with water and mix well.
1 ml of this solution contains I mg of Co.
4.18 Iron stock solution, 5 gil Fe
Weigh (5 ± 0,001) g of iron (Fe  99,99 %) and transfer into a 400 ml beaker. Add 100 ml of hydrochloric acid (4.1) and 50 ml of nitric acid solution (4.4) and cover with a watch glass. Heat gently until the metal is dissolved, then boil until nitrous fumes have been expelled. After cooling to room temperature, transfer the solution quantitatively into a 1 000 ml one-mark volumetric flask, dilute to the mark with water and mix well.
1 ml of this solution contains 5 mg of Fe.
Weigh (1 ± 0,001) g of iron (Fe  99,99 %) and transfer into a 250 ml beaker. Add 20 ml of hydrochloric acid (4.1) and 10 ml of nitric acid solution (4.4) and cover with a watch glass. Heat gently until the metal is dissolved, then boil until nitrous fumes have been expelled. After cooling to room temperature, transfer the soluhon quantitatively into a 1 000 ml one-mark volumetric flask, dilute to the mark with water and mix well.
1 ml of this solution contains 1 mg of Fe.
4.20 Lead stock solution, 5 gIl Pb
Weigh (2,5 ± 0,001) g of lead (Pb 99,99 %) and transfer into a 400 ml beaker. Add 50 ml of nitric acid solution (4.4) and cover with a watch glass. Heat gently until the metal is dissolved, then boil until nitrous fumes have been expelled. After cooling to room temperature, transfer the solution quantitatively into a 500 ml one- mark volumetric flask, dilute to the mark with water and mix well.
I ml of this solution contains 5 mg of Pb.
4.21 Lead stock solution, 1 gIl Pb
Weigh (1 ± 0,001) g of lead (Pb  99,99 %) and transfer into a 250 ml beaker. Add 20 ml of nitric acid solution (4.4) and cover with a watch glass. Heat gently until the metal is dissolved, then boil until nitrous fumes have been expelled. After cooling to room temperature, transfer the solution quantitatively into a 1 000 ml one-mark volumetric flask, dilute to the mark with water and mix well.
1 ml of this solution contains 1 mg of Pb.
4.22 Magnesium stock solution, 1 g/l Mg
Weigh (I ± 0,001) g of magnesium (Mg  99,99 %) and transfer Into a 250 ml beaker. Add 50 ml of nitric acid solution (4.4) and cover with a watch glass. Heat gently until the metal is dissolved, then boil until nitrous fumes have been expelled. After cooling to room temperature, transfer the solution quantitatively into a 1 000 ml one-mark volumetric flask, dilute to the mark with water and mix well.
1 ml of this solution contains 1 mg of Mg.
4.23 Manganese stock solution, 5 g/l Mn
The manganese used to prepare the solution is released from superficial oxide possibly present by introducing
a few grams of metal in a 250 ml beaker containing 60 ml to 80 ml of sulphuric acid (4.6) and approximately
100 ml of water. Shake and after a few seconds, allow the solution to settle and add water. Repeat the water
cleaning several times. Remove the metallic manganese. introduce it into acetone, allow to settle and dry the
metal in an oven at 100 °C for 2 mm. Cool in a desiccator.
Weigh (5 ± 0,001) g of this purified manganese and transfer into a 400 ml beaker. Add 50 ml of hydrochloric acid (4.1) and 125 ml of nitric acid solution (4.4) and cover with a watch glass. BS EN 15605-2010 pdf download.