If this value exceeds 1.5 mrad but is not more than 2.0 mrad upwards or exceeds 2.5 mrad but is not more than 3.0 mrad downwards, the second system of sample A shall be subjected to the test after which the mean of the absolute values recorded on both samples shall not exceed 1.5 m rad upwards and shall not exceed 2.5 mrad downwards. a1c0

If this value exceeds 1.5  mrad but is not more than 2.0 mrad, the second system of sample A shall be subjected to the test after which the mean of the absolute values recorded on both samples shall not exceed 1.5 m rad.

 a0c0