Difference between
version 23
and
version 22:
Line 35 was replaced by lines 35-36 |
- prepartion area shows the level in cm. Make sure that when returning the dewar, the level is at least 8-10 cm. |
+ prepartion area shows the level in cm. Make sure that there is sufficient helium for filling. The dewars |
+ should be returned with a level of at least 8-10 cm. |
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