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Department of Chemistry and Biochemistry

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Dewar Contents of Liquid Helium, Received and Used

Three Left Columns Show Depth vs. Volume of Liquid Helium
Inches

Cm

Liters, He

Date

Full, cm/L

~ Empty, cm/L

LHe Used, L

5 12.7 17 20-Oct-98 42cm/~77 L 10cm/~4 L ~ 70 L
6 15.2 22 19-Jan-99 45cm/~82 L 0 cm/ ~ 0 L ~82 L
7 17.8 27 22-Apr-99 41cm/~73L 0cm/~0 L ~73L
8 20.3 33 25-May-99 38cm/~58 L* 10cm/~ 12 L ~ 48L
9 22.9 38 29-Jul-99 51cm/93 L 19cm/30 L ~63 L
10 25.4 43 8-Oct-99 48cm/87L 0cm/~0 L ~87L
11 27.9 48 10-Dec-99 48cm/87L 0cm/~0 L ~87 L
12 30.5 53 18 Feb 2000A** 23cm/38 L 0cm/~0 L ~38 L
13 33 58 18 Feb 2000B** 35cm/63 L 23cm/~9 L ~54 L
14 35.6 63 30-May-00 32cm/58L 13cm/31L ~27L
15 38.1 68 26-Jun-00 32cm/58L 10cm/10L ~48L
16 40.6 74 3-Aug-00 50cm/94L 15cm/15L ~88L
17 43.2 79 5-Oct-00
47cm/87L     
0cm/~0 L ~87 L
18 45.7 84 7-Dec-00
49.5cm/90L   
5 cm/3L       
~87L
19 48.3 89 9-Feb-01
39.5 cm/86L  
2 cm/1L      
~85L
20 50.8 94
12-Apr-01
49cm/94L      
0.1cm/0L     
~94L
21 53.3 99
14-Jun-01
22.5cm/45L* 
11.5cm/20L  
~25L
22 55.9 104
22-Jun-01
83.5cm/46L*  
14cm/21L   
~65L
23 58.4 107
22-Aug-01
50cm/91.4L  
1cm/1L      
~90.4L
 
18-Oct-01
37 cm/79L  
0.5cm/<1L 
~79L
11-Dec-01
52cm/94L   
13cm/17L    
~77L
13-Feb-02
51cm/94L 
0.5cm/<0.5L
~94 L
18-Apr-02
51cm/94L  
2.5cm/4 L 
~90L
12-Jun-02
44 cm/79.5 L
8cm/8 L    
~36L
6-Sep-02
50cm/94L 
50cm/94L 
~94L
6-Nov-02
16.5cm/91L 
1cm/0.5 L
~90L
8-Apr-03
19.5cm/94L
22cm/40L
~54L
13-Jun-03
39cm/67L
20.5/30L
~33L
14-Aug-03
55cm/102L
1cm/0L 
~102L
15-Oct-03
42cm/91L  
3cm/1L 
~91L
18-Dec-03
51cm/95L 
0cm/0L 
~95L
17-Feb-04
16"/41cm/95L
<1cm
~95L
29-Apr-04
19"/49cm/88L
11cm/9L
~77L
1-Jul-04
19"/49cm/87L
<1cm/0L
~87L
9-Sep-04
20"/51cm/91L 
<1cm/0L
~91L
10-Nov-04
15.5"/90L 
<1"/<1L 
~90L
10-Jan-06
52 cm/95L
10 cm/12 L
~83L
27-Feb-06
49 cm/89.4L 
0 cm/ 0L 
~89L
13-Jun-06
13"/69L
6" /26L
~43L
15-Aug-06
15cm/67L
0 cm/0L
~67LCheck green
13-Oct-06
10"/45 L
0"/0L
~40L
3-Nov-06
16.5"/~78L
0.5"/0.3L
~77.5L
5-Jan-07
14.5"/67L
0.0/0L
~67L
7-Feb-07
16"/74 L
0.0/0L
~74L
13-Apr-07
15"/71 L
0.0/0L
~71L
1-Jun-07
14.5"/67 L
0.0/0L
~67L
14-Sep-07
15"/70 L
0.0/0L
~70L
2-Nov-07
17"/71L
0.0/0L
~71L
15-Jan-08
13"/ 60L
0.5/0L
~60L
       
       
       
       
       
       
       
       
       
       
       

  

*  Dewar was half empty from CryoServices ** Two Dewars partially filled were shipped. Check green New supplier of liquid helium, Dewar calibration is given as inches..

 

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