Indoor Design Conditions for Industrial Products and Production Processes

Recommended indoor temperature and humidity for some common industrial products and production processes

Recommended design conditions should provide employees a comfortable and healthy indoor work environment together with optimal conditions for the production processes. Unfortunately this is obvious not always possible and often it is necessary to make special arrangements shielding the employees from the production environment.

Design conditions - temperature and humidity - for some common production processes are indicated below:

IndustryProcessTemperatureRelative humidity
oCoF
minmaxminmax%
Abrasives Manufacturing 26 26 79 79 50
Ammunition 21 21 70 70 40
Bakery Flour storage 16 26 61 79 55 - 65
Production 23 26 73 79 40 - 70
Billiard Room 23 24 73 75 40 - 50
Bowling Center Bowling alleys 23 24 73 75 50 - 55
Billiard rooms 23 24 73 75
Bread Flour and powdered storage 21 27 70 80 60
Fermentation 27 27 80 80 75
Retarding of Dough 0 4 32 40 85
Final Proof 35 49 95 120 85 - 90
Counter flow Cooling 24 24 75 75 80 - 85
Brewing Hop storage -2 0 29 32 50 - 60
Yeast culture room 80
Candy Chocolate Pan supply air 13 17 55 62 55 - 45
Enrobed room 27 29 80 85 30 - 25
Chocolate Cooling Tunnel supply air 4 7 40 45 85 - 70
Hand Dippers 17 17 62 62 45
Molded goods cooling 4 7 40 45 85 - 70
Chocolate Packing room 18 18 65 65 50
Chocolate finished stock storage 18 18 65 65 50
Centers tempering room 24 27 75 80 35 - 30
Marshmallow setting room 24 26 75 78 45 - 40
Grained marshmallows drying 43 43 110 110 40
Gum drying 52 66 125 150 25 - 15
Sanded Gum drying 38 38 100 100 25 - 40
Gum finished stock storage 10 18 50 65 65
Sugar pan supply air 29 41 85 105 30 - 20
Polishing pan supply air 21 27 70 80 50 - 40
Pan rooms 24 27 75 80 35 - 30
Nonpareil Pan supply air 38 49 100 120 20
Hard candy cooling tunnel air 16 21 60 70 55 - 40
Hard candy packing 21 24 70 75 40 - 35
Hard candy storage 10 21 50 70 40
Caramel rooms 21 27 70 80 40
Ceramics Refractory 43 66 110 150 50 - 90
Molding room 27 27 80 80 60 - 70
Clay storage 16 27 60 80 35 - 65
Decalcomania production 24 27 75 80 50
Decoration room 24 27 75 80 50
Cereal Packaging 24 27 75 80 45 - 50
Cheese Curing Cheddar 7 13 45 55 85 - 90
Swiss 16 16 60 60 80 - 85
Blue 9 10 48 50 95
Brick 16 18 60 65 90
Limburger 16 18 60 65 95
Camembert 12 15 53 59 90
Clean rooms 21 27 70 80 40 - 60
Distilling Grain Storage 16 16 60 60 35 - 40
General Manufacturing 16 24 60 75 45 - 60
Aging 18 22 65 72 50 - 60
Fruit Storage Apples -1 4 30 40 90
Apricots -1 0 31 32 90 - 95
Grapefruits (California) 14 16 58 60 85 - 90
Grapefruits (Florida) 10 10 50 50 85 - 90
Grapes (Eastern) -1 0 31 32 85
Grapes (Western) -1 -1 30 31 90 - 95
Lemons 14 16 58 60 86 - 88
Oranges (California) 4 7 40 44 85 - 90
Oranges (Florida) 0 1 32 34 85 - 90
Peaches and Nectarines -1 -1 31 31 90
Plums -1 0 30 32 90 - 95
Citrus fruits 3 4 38 40 90 - 95
Fur Storage -2 4 28 39 25 - 40
Drying 43 43 109 109
Gum Manufacturing 25 25 77 77 33
Rolling 20 20 68 68 63
Stripping 22 22 72 72 53
Breaking 23 23 74 74 47
Wrapping 23 23 74 74 58
Hospitals Operating, Cystoscopic and fracture rooms 20 24 68 76 50
Patient rooms 24 24 75 75 40 - 50
Intensive care unit 24 24 75 75 40
Administrative and service areas 21 27 70 80 30 - 50
Leather Drying 21 49 70 120 75
Storage, winter room temperature 10 16 50 60 40 - 60
Lenses (optical) Fusing 24 24 75 75 45
Grinding 27 27 80 80 80
Libraries and Museums Normal reading and viewing rooms 21 23 70 74 40 - 50
Rare manuscript and Storage Vaults 21 22 70 72 45
Art Storage Areas 18 22 65 72 50
Matches Manufacture 22 23 72 74 50
Drying 21 24 70 75 60
Storage 16 17 60 62 50 - 55
Meat and fish Beef (fresh) 0 1 32 34 88 - 92
Beef (frozen) -23 -18 -10 90 - 95
Fish (fresh) 1 2 33 35 90 - 95
Fish (Frozen) -23 -18 -10 90 - 95
Lamb and Pork (Fresh) 0 1 32 34 85 - 90
Lamb and Pork (Frozen) -23 -18 -10 90 - 95
Mushrooms Sweating out period 49 60 120 140
Spawn added 16 24 60 75 100
Growing period 9 16 48 60 80
Storage 0 2 32 35 80 - 85
Paint Applications Oil paint spraying 16 32 60 90 80
Drying oil paints 15 32 59 90 25 - 50
Brush and spray painting 15 27 59 81 25 - 50
Pharmaceuticals Manufactured powder storage and packing area 24 24 75 75 35
Milling room 24 24 75 75 35
Tablet compressing and coating 24 24 75 75 35
Effervescent tablets and powders 24 24 75 75 20
Hypodermic tablets 24 24 75 75 30
Colloids 21 21 70 70 30 - 50
Caught drops 27 27 80 80 40
Glandular products 24 24 76 76 5 - 10
Ampoule manufacturing 24 24 75 75 35 - 50
Gelatin Capsules 24 24 76 76 35
Capsule storage 24 24 76 76 35
Micro-analysis 24 24 76 76 50
Biological manufacturing 24 24 76 76 35
Liver extracts 24 24 76 76 35
Serums 24 24 76 76 50
Animal rooms 24 27 75 80 50
Small animal rooms 24 26 75 78 50
Paper Binding, cutting, drying, folding, gluing 15 27 59 81 25 - 50
Storage of paper 15 27 59 81 34 - 45
Storage of books 18 21 64 70 38 - 50
Plastics Manufacturing areas thermosetting molding compounds 27 27 80 80 25 - 30
Cellophane wrapping 24 27 75 80 45 - 65
Photographic Development of film 21 24 70 75 60
Drying 24 27 75 81 50
Printing 21 21 70 70 70
Cutting 22 22 72 72 65
Plywood Hot pressing, resin 32 32 90 90 60 - 70
Cold pressing 32 32 90 90 15 - 25
Printing Binding 21 21 70 70 45
Folding 25 25 77 77 65
Pressing, general 24 24 75 75 60 - 78
Plate making 24 27 75 80 max 45
Lithographic press room 24 27 76 80 43 - 47
Letterpress and web offset rooms 21 27 70 80 50
Paper storage, letterpress 21 27 70 80 43 - 47
Paper storage, multicolor sheet feed lithography 24 27 76 80 50 - 55
Raw Material Storage Nuts, insect 7 7 45 45 65 - 75
Nuts, rancidity 1 3 34 38 65 - 75
Eggs -1 -1 30 30 85 - 90
Chocolate, flats 18 18 65 65 50
Butter -7 -7 20 20
Dates, figs 4 7 40 45 75 - 65
Corn Syrup 90 - 100
Liquid sugar 24 27 75 80 60 - 50
Rubber-dipped goods Cementing 27 27 80 80 25 - 30
Dipping surgical articles 24 32 75 90 25 - 30
Storage prior to manufacture 16 24 60 75 40 - 50
Laboratory, ASTM standard 24 24 75 75 50 - 55
Textile Cotton, carding 24 27 75 81 50
Cotton, spinning 15 27 59 81 60 - 70
Cotton, weaving 20 24 68 75 70 - 80
Nylon, production 27 27 81 81 50 - 60
Rayon, spinning 21 21 70 70 85
Rayon, twisting 21 21 70 70 65
Silk, spinning 24 27 75 81 65 - 70
Silk, weaving 24 27 75 81 60 - 70
Wool, carding 24 27 75 81 65 - 70
Wool, spinning 24 27 75 81 55 - 60
Wool, weaving 24 27 75 81 50 - 55
Tobacco Cigar and cigarette making 21 24 70 75 55 - 65
Softening 32 32 90 90 85
Stemming and strigging 24 30 75 86 70
Filler tobacco casing conditioning 24 24 75 75 75
Filler tobacco storage and preparation 26 26 78 78 70
Wrapper tobacco storage and conditioning 24 24 75 75 75

Related Topics

  • Air Conditioning - Air Conditioning systems - heating, cooling and dehumidification of indoor air for thermal comfort
  • Heating - Heating systems - capacity and design of boilers, pipelines, heat exchangers, expansion systems and more
  • Ventilation - Systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more

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