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Registertemperature range of freezers [GxP / QC / QA]
posted by Helmut 
– Vienna, Austria, 2014-08-02 15:24 (4334 d 02:58 ago) – Posting: # 13334
Views: 4,820
Hi sree1805,
Amazing what »some of them« do. Are you talking about household-freezers? Lab-freezers generally maintain the temperature at -20 °C to ±1 °…
I guess you don’t want samples to thaw? Following table gives the cumulative time during one year to expect the temperature to be ≥ 0 °C:
I hope »they« have both an alarm system and a quick chain of responses in place.
❝ in case of the deep freezers (-20 degree celsius) some of them use the freeze -20 plus or minus 10 and some of them use plus or minus 8 and some in plus or minus 5.
Amazing what »some of them« do. Are you talking about household-freezers? Lab-freezers generally maintain the temperature at -20 °C to ±1 °…
❝ I want to know on what basis the plus or minus 5/8/10 is decided to run the freezers.
I guess you don’t want samples to thaw? Following table gives the cumulative time during one year to expect the temperature to be ≥ 0 °C:
x SD time
───────────────────
-20 10 8 days
-20 8 54 hours
-20 5 17 minutes
I hope »they« have both an alarm system and a quick chain of responses in place.
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Dif-tor heh smusma 🖖🏼 Довге життя Україна!
Helmut Schütz
The quality of responses received is directly proportional to the quality of the question asked. 🚮
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Complete thread:
- temperature range of freezers sree1805 2014-08-02 04:10
![[Mix]](https://static.bebac.at/img/mix.png "open in Mix view")
- temperature range of freezersHelmut 2014-08-02 13:24
Ing. Helmut Schütz