Multidose Vial to be Punctured

Please, clarify one doubt. Is there any specific number of times only, the multidose vial to be punctured with each time sterile needle. Or till the whole vial get empty we can use.

10 times only 

before use mention date and time 

each prick put one dot after 10 dose discorded the vials

10 pricks or 28 days

Whichever is first

For 28 days  write date on the day of opening the vial

For 10 pricks keep first  dot on the day of opening