Common use of Mechanical characteristics Clause in Contracts

Mechanical characteristics. 7.8.2.1. The helmet, fitted with its visor and previously conditioned in accordance with the provisions of paragraph 7.2.4., shall be placed in accordance with the provisions of paragraph 7.3. 1.3.1. on a test headform of suitable size. The test headform selected from among those shown in annex 4 shall be so placed that the basic plane is vertical. 7.8.2.2. The test apparatus used shall be as described in paragraph 7.8.2.2.1., the metal punch being placed in contact with the visor in the vertical symmetrical plane of the headform to the right of point K. The apparatus shall be designed in such a way that the punch is stopped not less than 5 mm above the headform. 7.8.2.2.1. The testing device mentioned in paragraph 7.8.2.2. above shall have the following characteristics: Mass of punch 0.3 kg " 10 g Angle of cone forming punch head 60° " 1° Radius of rounded top of punch head 0.5 mm Mass of the drop hammer 3 kg " 25 g 7.8.2.3. When the drop-hammer falls from a height of 1 + 0.005 m, measured between the top face of the punch and the lower face of the hammer, it shall be ascertained that: 7.8.2.3.1. no sharp splinters are produced if the visor is shattered. Any segment having an angle less than 60° shall be considered as a sharp splinter.

Mechanical characteristics. 7.8.2.1. 7.8.2.1 The helmet, fitted with its visor and previously conditioned in accordance with the provisions of paragraph 7.2.4., shall be placed in accordance with the provisions of paragraph 7.3. 1.3.1. 1.3.1 on a test headform of suitable size. The test headform selected from among those shown in annex 4 shall be so placed that the basic plane is vertical. 7.8.2.2. 7.8.2.2 The test apparatus used shall be as described in paragraph 7.8.2.2.1., the metal punch being placed in contact with the visor in the vertical symmetrical plane of the headform to the right of point K. The apparatus shall be designed in such a way that the punch is stopped not less than 5 mm above the headform. 7.8.2.2.1. 7.8.2.2.1 The testing device mentioned in paragraph 7.8.2.2. 7.8.2.2 above shall have the following characteristics: Mass of punch 0.3 0,3 kg " ± 10 g Angle of cone forming punch head 60° " °± 1° Radius of rounded top of punch head 0.5 0,5 mm Mass of the drop hammer 3 kg " ± 25 g 7.8.2.3. 7.8.2.3 When the drop-hammer falls from a height of 1 + 0.005 0,005 m, measured between the top face of the punch and the lower face of the hammer, it shall be ascertained that: 7.8.2.3.1. no 7.8.2.3.1 No sharp splinters are produced if the visor is shattered. Any segment having an angle less than 60° °shall be considered as a sharp splinter.