Document jgL48v7xr04eKKzYD5vLNJrBN

966 CHAPTER 45 1953 Guide Table 1. Temperatures andHumidities Applicable to Industrial Air Conditioning--(Continued) Process Temp. F PAINT APPLICATION R.H. % Lacquers: Oil Paints 70-00 180-300 60-90 75 60 60 Spray booths to have 100 fpm face velocity. M&ke-u > air must be preheated. Ovens must have air removed to keep fumes below explosive concentration. J Equipment must be explosion-proof throughout Room ob Process Temp. F R.H. % PHARMACEUTICAL 70 to 80 75 to 80 80 70 to 80 80 90 75 to 80 70 80 78 to 80 80 78 75 80 80 70 to 80 . 74 to 78 75 to 80 75 to 78 30 to 35 15 to 35 35 40 35 ..... -15 30 30 to 50 40 5 to 10 35 40 to 50 35 to 40 50 35 20 to 30 50 40 . 47 to 48 Gelatin capsules require varying relative humidities, depending upon sise of capsule. Moisture content should not exceed 0.25 gr per cu ft. Various kinds of gelatin require different temperatures. Penicillin incubation process requires holding temperature within i deg F, with temperatures and hu midity rigidly controlled during all manufacturing phases. Ampule filling requires.a 20 percent relative humidity when especially fine powders are used. Uncoated tablet manufacturing requires accurate control of temperature and relative humidity, since low relative humidity.causes formation of a hard outer layer, and high relative humidity retards drying at the proper rate. Liver extracts require a low relative humidity after they are dried. Temperatures higher than 80 F will cause the extracts to deteriorate. Tablet coating requires the control of the temperatures of all ingredients and the temperature of air in troduced to coating pans. Sterile conditions are essential in many pharmaceutical processes. Provide suitable air exhaust to re move surplus material from tablet compressing machine. Air filtration b generally required, with positive air filtration in some areas. Animal Rooms in Phabmackutical Laboratories In the following tabulation each of the items mentioned is equivalent in metabolism to one man: Quantity Animal Weight Each 672 White Mice 21 S 110 Rats 200 g 73 Rats 400 g 70 Guinea Pigs 410* 21 Rabbits 2.6 kg 16 Cats 3.0 kg 16 Monkeys 3.0kg 5 Dogs 14.0 kg Dogs are generally the worst offenders as far as odor generation is concerned. Decontamination of exhaust air is recommended in populated areas. in) should be provided: Animal Mice Rats Guinea Pigs Rabbits Hamsters Cats Dogs cu ft 3 4 6 10 8 35 150 cfm 0.6 0.75 1.0 1.9 1.5 10.0 28.0 Industrial Air Conditioning 967 Table 1. Temperatures and Humidities Applicable to Industrial Air Conditioning--(Continued) R.H. % PHOTO STUDIO Dressing Room... Drying Room... . Printing Room ... Setting Room.. .. Developing Room. Storage Room -- 74 75-80 70 72 70-75 60 30-40 50 70 65 60 45 - Heat liberated during printing, enlarging and drying processes is removed through an independent ex' haust system, which also serves the lamp houses and dryer hoods. Dust control is essential, and absolute filtration is required in some areas. Pbocess Temp. F PHOTO MATERIAL ! R.H. % 20-125 65-75 70-75 70-75 60-80 40-50 40-80 40-60 40-65 40-65 45-50 40-50 . Spray water must have algae inhibitor. Positive dust control must be maintained and absolute filtra tion is essential. In nitrate film area take proper precautions against fires. Recirculated air used for film drying is passed through activated carbon filters. Relative humidity for film storage should never exceed 60 percent with a minimum of 25 percent. Pbocess PLASTICS Manufacturing areas: Thermo setting moulding compounds................................ Cellophane wrapping............................................................... Absolute filtration is required in some areas. Collection and removal of dust and fumes is essential. Temp. F 80 75 to 80 R.H. % 25 to 30 . 45 to 65 Pbocess PLYWOOD Temp. F R.H. % Hot Pressing (resin)................................... ................................ Cold Pressing................................................................................ 90 90 60 15 to 25 POULTRY RAISING Incubator....................................................................................... Brooder: . 1st week...................................................... ,\........................... 2nd week..................................................................................... Battery room: Starting....................................................................................... . Growing ......... Egg storage.................................................................................... 70-75 70-75 50-60 70 50-60 45-60 30-60 -60 60 70-75 50-60 70-80 Maximum ventilation is required for laying quarters during the summer months, while an attempt is made to maintain a temperature 10 deg above or below outdoor temperature during the winter, to minimise condensation on the exterior walls. This applies to houses not having forced ventilation systems. Pbocebs Casket Rtnnon Cement & glue storage......... Precision part* mwhtTiinp Temp. F PRECISION MACHINING 75-80 75-80 100 65 75 R.H. % 45-50 35-40 50 40 45-50