| 4.2. | The conformity of mass-produced retro-reflective devices shall be contested if the deviation of at least one specimen of samples E or F is more than 20 per cent. | a0c0 |
| 4.2. | The conformity of mass-produced retro-reflective devices shall be contested if the deviation of at least one specimen of samples E or F is more than 20 per cent. | a0c0 |