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