Lines 36-38 were replaced by lines 36-37 |
- *Always measure the Helium level in the dewar before you take a Dewar away. The Level meter in the |
- preparation 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. |
+ *The Level meter in the preparation area shows the level in litres. Make sure that there is sufficient helium for filling. The dewars |
+ should be returned with a level of at least 10-15 litres. |