
Article 1 
This Directive applies to medium accuracy weights of the following nominal values:

— rectangular bar weights of 5, 10, 20 and 50 kg;
— cylindrical weights of 1, 2, 5, 10, 20, 50, 100, 200 and 500 g and 1, 2, 5 and 10 kg.
Article 2 
The weights which may bear the EEC marks and symbols are described and illustrated in Annexes I-IV. They shall not be subject to EEC pattern approval; they shall be subject to EEC initial verification.
Article 3 
No Member State may refuse, prohibit or restrict the placing on the market or entry into service of medium accuracy rectangular bar or cylindrical weights bearing the EEC initial verification mark.
Article 4 

1. Member States shall put into force the laws, regulations or administrative provisions needed in order to comply with this Directive within eighteen months of its notification, and shall forthwith inform the Commission thereof.
2. Member States shall ensure that the texts of the main provisions of national law which they adopt in the field covered by this Directive are communicated to the Commission.
Article 5 
This Directive is addressed to the Member States.
Done at Brussels, 26 July 1971.
For the Council
The President
A. MORO
ANNEX I
1.  1.1. Parallelepiped shape with a rigid non-projecting handle for gripping.
 1.2. 

1.2.1. Body of the weight: grey cast iron
1.2.2. Type 1: handle of seamless steel tubing of standard diameter
Type 2: handle of cast iron, integral with the body of the weight.

2.  2.1. Internal cavity made up of the interior of the tubular gripping handle.
 2.2. The cavity is closed by a screw-plug of. drawn brass or by a brass plug in the form of a smooth disc. The screw-plug has a screwdriver slot and the smooth disc has a central lifting hole.
 2.3. The plug is sealed by a lead pellet driven into an internal circular groove or into the thread of the tube.
 2.4. Internal cavity cast in one of the uprights of the weight and opening on the upper surface of this upright.
 2.5. The cavity is closed by a small mild steel plate.
 2.6. The plate is sealed by a lead pellet driven into a recess as shown in Annex II.

3.  3.1. After adjustment of the new weight by means of lead shot, two thirds of the total volume of the cavity remains empty.

4.  4.1. The final EEC verification mark is stamped on the lead seal of the adjustment cavity.

5.  5.1. The indications stating the nominal value of the weight, and the manufacturer's identification mark, appear on the upper surface of the central part of the weight, either indented or in relief.
 5.2. The nominal value of the weight is indicated in the form: 5 kg, 10 kg, 20 kg, 50 kg.

6.  6.1. The dimensions to be complied with for the different weights are laid down in Annex II (dimensions in millimetres).
 6.2. The tolerances applicable to the various dimensions are the normal manufacturing tolerances.

7. 

Nominal value Maximum permissible errors in milligrammes on initial verification
5 kg + 800
— 0
10 kg + 1600
— 0
20 kg + 3200
— 0
50 kg + 8000
— 0

8.  8.1. If necessary, weights are protected against corrosion by a suitable coating resistant to wear and impact.

ANNEX II

ANNEX III
1.  1.1. Cylindrical shape with a flat knob for gripping.
 1.2. 
Grey cast iron may not be used for weights of a nominal value of less than 100 g.
 1.3. The method of manufacture to be appropriate to the material chosen.

2.  2.1. Internal cylindrical cavity with a larger diameter in the top part of the cavity.
 2.2. The cavity is closed by a screw plug of drawn brass or by a brass plug in the form of a smooth disc. The screw plug has a screwdriver slot and the smooth disc has a central lifting hole.
 2.3. The plug is sealed by a lead cap driven into a circular groove cut out in the wider part of the cavity.
 2.4. Weights of 1, 2, 5 and 10 g do not have an adjustment cavity.
 2.5. An adjustment cavity is optional for those of 20 and 50 g.

3.  3.1. After adjustment of the new weight by means of lead shot, two-thirds of the total volume of the cavity remains empty.

4.  4.1. The final EEC verification mark is stamped on the lead seal of the adjustment cavity.
 4.2. Weights without adjustment cavities are stamped on the base.

5.  5.1. The indications stating the nominal value of the weight, as well as the manufacturer's identification mark, appear on the upper surface of the head of the weight, either indented or in relief.
 5.2. The nominal value of the weight may be indicated on the body of weights of from 500 g to 10 kg.
 5.3. 
1 g, 2 g, 5 g, 10 g, 20 g, 50 g, 100 g, 200 g, 500 g, 1 kg, 2 kg, 5 kg, 10 kg.

6.  6.1. The dimensions to be complied with for the different weights are laid down in Annex IV (dimensions in millimetres).
 6.2. The tolerances applicable to the various dimensions are the normal manufacturing tolerances.

7. 

Nominal value. Maximum permissible errors in milligrammes on initial verification
1 g + 5
— 0
2 g + 5
— 0
5 g + 10
— 0
10 g + 20
— 0
20 g + 20
— 0
50 g + 30
— 0
100 g + 30
— 0
200 g + 50
— 0
500 g + 100
— 0
1 kg + 200
— 0
2 kg + 400
— 0
5 kg + 800
— 0
10 kg + 1600
— 0

8.  8.1. If necessary, weights are protected against corrosion by a suitable coating resistant to wear and impact; they may be polished.

ANNEX IV
