Unit-Size Desiccant Chart | Container Size to Desiccant Requirements Chart

Desiccant is sold in unit size bags according to Mil-D-3464E. A unit is the amount of desiccant which will adsorb at least 3 grams of moisture vapor at 20% relative humidity, and at least 6 grams of moisture vapor at 40% relative humidity at 25°C. If the container you need to protect is 950cc or less in volume, use the Desiccant Requirement Chart for Pharmaceutical Applications.

The amount of desiccant/adsorbent required will depend upon the chemical characteristics of the product as well as the volume contents and physical properties of the container. We recommend a stability study be performed to determine exact amounts required. Samples available upon request.

Volume In Cu Inches
Area In Cu Feet
Gallons
SQ.Inches
SQ.Feet
Units Required
237
0.14
1.1
15
0.1
1/6
476
0.28
2.1
30
0.2
1/3
715
0.42
3.2
45
0.3
1/2
1,429
0.83
6.2
90
0.6
1
2,857
1.67
12.5
180
1.3
2
4,286
2.5
18.7
270
1.9
3
5,714
3.33
25
360
2.5
4
7,143
4.17
31.2
450
3.1
5
8,571
5
37.4
540
3.8
6
10,000
5.83
43.6
630
4.4
7
11,423
6.67
50
720
5
8
12,857
7.5
56.1
810
5.6
9
14,286
8.33
62.3
900
6.3
10
17,143
10
74.8
1,080
7.5
12
20,000
11.67
87.3
1,260
8.8
14
22,857
13.33
99.7
14.40
10
16
28,571
16.67
125
1,800
12.5
20
42,857
25
187
2,700
18.8
30
57,143
33.33
249
3,600
25
40
71,429
41.67
4,500
31.3
50
85,714
50
5,400
37.5
60
100,000
>58.3
6,300
43.8
70
114,286
66.67
7,200
50
80

Desiccant Calculator

Use the calculator below which will give an estimate of the number of units of Clay or Silica Gel desiccant required for any size Moisture Barrier Bag.

Clay & Silica Gel Desiccant
Requirement Estimator
Desiccant Type
Total

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