Dear my friend*
thank you for your kindly reply*
In your certificate* the Uncertainty has the unit same as the Certified value's unit* that's the good CRM Certificate* so you are easy to understand.

But my situation is different with yours. Please see in my attach certificate above (img-320141428-0001.pdf ) to instruct me properly. They are not define unit of Uncertainty* they are not defined the formula to calculate them.

Once again* thank you for your sharing experiences.