r) Include a partial Sample  Tamper Evident  sealing system with a unique numbering system to temporarily seal a Sample with an insufficient volume in accordance with Annex  E - Urine Samples  – Insufficient Volume;  For Venous Blood Sample Collection : s) Have the ability to collect, store and transport blood in separate A and B tubes and  containers;  t) For the analysis of Prohibited Substances or Prohibited Methods in whole blood or plasma and/or for profiling blood parameters, the A and B tubes must have the capacity to contain a minimum of 3mL of blood and shall contain EDTA as an anti-coagulant;  u) For the analysis of Prohibited Substances or Prohibited Methods in serum, the A  ISTI – Effective 1 January 2023  Page 49 of 92 and B tubes must have the capacity to contain a minimum of 5mL of blood and shall contain an inert polymeric serum separator gel and clotting activation factor;  and [Comment to 6.3.4 (t) and (u): If specific tubes have been indicated in the applicable WADA International Standard, Technical Document or Guidelines, then the use of alternative tubes which meet similar criter ia shall be validated with the involvement of the relevant Laboratory(ies)  and approved by WADA prior to use for Sample collection.]