beautypg.com

Herrmidifier Load Calculator User Manual

Page 10

background image

L o a d C a l c u l a t i o n G u i d e

L o a d C a l c u l a t i o n G u i d e

10

w w w. h e r r m i d i f i e r- h v a c . c o m

Leather Processing And Humidification

Proper levels of controlled humidity (40%-60% R.H.) will

keep leather soft and pliable, helping it to resist cracking

when handled and worked. Leather should be stored in a

humidity controlled environment before working it to ensure

that it is soft, pliable and at the proper regain. Different tan-

ning processes will require different levels of R.H. (See Table

1 -D.)

A Humidification Synopsis

There is not a single industry that cannot use humidification

in some are of production, either for material or personnel

benefit.

Offices, hospitals, nursing homes, libraries, museums, fur-

niture stores, bowling alleys, etc., all contain hygroscopic

materials (wood, carpets, etc.) which can be damaged by

dry air. Proper humification protects these materials and also

safeguard the comfort of personnel in these areas.

For an overview of some industries and their humidity re-

quirements see Table I -D following. If your particular indus-

try is not listed, contact Herrmidifier Co., Inc. and we will

supply you with a humidification fact sheet for your industry

telling you why proper humidification is needed and how it

can be accomplished.

Industry

°F

% RH

Industry

°F

% RH

Baking

Hospitals:

Cake mixing

70-75

65%

Nurseries

75

50-65%

Crackers & biscuits

60-65

50%

Operating room

75

55%

Fermenting

75-80

70-75%

Patients’ rooms

75

40-50%

Flour storage

65-80

50-65%

Laboratories

As required

Loaf cooling

70

60-70%

Leather

Make-up room

75-80

65-70%

Chrome tanned (dying)

120

45%

Mixer-bread dough

75-80

65-70%

Vegetable tanned (drying)

70

75%

Proof box

90-95

80-90%

Storage

50-60

40-60%

Yeast storage

32-45

60-75%

Libraries & Museums

70-80

40-50%

Bowling Centers

70

35-45%

Paint Application:

Cereal: packaging

75-80

45-50%

Air drying lacquers

70-90

60%

Confectionary:

Air drying oil paint

60-90

60%

Chocolate covering

62-65

50-65%

Paper Products:

Centers for coating

80-85

40-50%

Binding

70

50-65%

Hard candy

70-80

30-50%

Printing & Folding

75-80

45-55%

Storage

60-68

50-65%

Storage

75-80

40-60%

Cork Processing

80

45%

Schools

72

35-50%

Computers:

Textiles:

Data Processing

70-75

45-55%

Cotton – carding

75-80

50-55%

Computer Mfg & Assembly

70-75

45-55%

Cotton – spinning

60-80

50-70%

Electrical:

Cotton – weaving

68-75

85%

Mfg. Cotton covered wire

60-80

60-70%

Rayon – spinning

80

50-60%

Storage – general

60-80

35-50%

Rayon – throwing

70

85%

Food:

Silk Processing

75-80

65-70%

Apple storage

30-32

75-85%

Woolens – carding

80-85

65-70%

Banana – ripening

68

90-95%

Woolens – spinning

80-85

50-60%

Banana – storage

60

85-90%

Woolens – weaving

80-85

60%

Citrus fruit – storage

60

85%

Tobacco:

Egg storage

35-55

75-80%

Cigar & cigarette

70-75

55-65%

Grain storage

60

30-45%

Other processing & storage

75

70-75%

Meat – beef aging

40

80%

Casing room

90

88-95%

Mushroom – storage

32-35

80-85%

Woodworking:

Potato storage

40-60

85-90%

Finished products

65-70

35-40%

Tomato –storage

34

85%

Gluing

70-75

40-50%

Tomato – ripening

70

85%

Manufacture

65-75

35-40%

Greenhouses

80

70-80%

Painting – lacquer (static control)

70-90

60%

Table 1D

RECOMMENDED HUMIDITIES AND TEMPERATURES FOR VARIOUS INDUSTRIES