QCS-010 - Quality Operations Procedures for Pharmaceutical, API, and Biotechnology - page 45

SOP No. QCS-010.00 Effective date: mm/dd/yyyy
Approved by:
c. Maximum 7 days, in the dark at 2-10°C, is acceptable for storage of prepared media.
d. All media must be stored to prevent the formation of bacteriostatic and bactericidal
substances (e.g., peroxides).
8. Storage of prepared plates:
a. Most plates stored media side up at 2-10°C in the dark will have a maximum life of 7
days.
b. Plates containing antibiotics have a shelf life governed by the stability of the
antibiotic.
c. Plates showing visible signs of shrinkage (drying) shall be discarded as unsuitable for
use.
d. Plates must be brought to room temperature before use to avoid any thermal shock to
the bacteria.
e. Any plates left on the bench for more than 8 h must be discarded as unsuitable for use.
10.3 reason for revision
First time issued for your company, affiliates, and contract manufacturers.