The retro-reflective device shall be kept for 48 consecutive hours in a dry atmosphere at a temperature of 65 °C ± 2 °C after which the sample shall be allowed to cool for 1 hour at 23 °C ± 2 °C. | a0c0 |
The retro-reflective device shall be kept for 48 consecutive hours in a dry atmosphere at a temperature of 65 °C ± 2 °C after which the sample shall be allowed to cool for 1 hour at 23 °C ± 2 °C. | a0c0 |