Sartorius stedim Sartocon ECO Series, Руководство пользователя

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18 Start up of cassettes
2.9 Cassette Storage
Sartorius filter cassettes can be stored after use. To avoid microbial
contamination preservatives have to be used.
All membranes will lose their filtration performance if allowed to dry out or
freeze. Always store filter cassettes in moist condition.
2.9.1 Short Term Storage
We recommend the following preservatives for short term storage
(not exceeding 4 weeks):
Preservative Concentration
Formaldehyde 2–3% by weight
Ethanol 20%–40% by weight *
Do not use denatured alcohol
NaOH 0.1 N
* Hydrosart ® can be stored in Ethanol 20–40% by weight.
For short term storage proceed as follows:
1. Clean the filter cassettes (see “Cleaning the Filter Cassettes” ).
2. Recirculate the preservative for 5 minutes through the system at the same flow
rate used to flush the filter cassettes. The preservative must flow through both
permeate outlets.
3. Close feed inlet, retentate outlet and both permeate outlets.
4. Do not allow the cassettes to dry out or freeze.
2.9.2 Long Term Storage
We recommend the following preservatives for long term storage:
Preservative Concentration
Formaldehyde 2–3% by weight
Ethanol 20%–40%by weight*
Do not use denatured alcohol
NaOH 0.1 N PESU and Hydrosart ® up to 12 months
* Hydrosart
®
can be stored in Ethanol 20–40% by weight.