QUES: If you use an operating system lower than IOS 4 you can change the volume by using the volume control of NAVIGON select

correct the punctuation.

CORRECTED: If you use an operating system lower than IOS 4, you can change the volume by using the volume control of NAVIGON select.

QUES: Obviously it is also possible to proceed straight to laboratory analyses without prior screenings

correct the punctuation.

CORRECTED: Obviously, it is also possible to proceed straight to laboratory analyses without prior screenings.

QUES: The same employee has responsibility for the process from start to finish Aided by the latest flexible production technology and centuryold values Reliability Responsibility Honesty

correct the punctuation.

CORRECTED:
The same employee has responsibility for the process from start to finish. Aided by the latest, flexible production technology and century-old values: Reliability. Responsibility. Honesty.