Indoor Design Conditions - Industrial Product and Production Processes

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

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

The table below can be used to indicate the design conditions - temperature and humidity - for common production processes.

Industry	Process	Temperature ^oC min	Temperature ^oC max	Temperature ^oF min	Temperature ^oF max	Relative humidity %
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
	Microanalysis	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

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