Recommended Illuminance Levels

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  INDUSTRIAL BUILDINGS & PROCESSESAverage
Illuminance
1General Factory Areas
aCanteens150
bClock-rooms100
cEntrances, corridors, strairs100
2Factory Outdoor Areas
Stockyards, main entrances and exit roads, car parks, internal factory roads20
3Aircraft Factories and Maintenance Hangars
aStock parts productions450
bDrilling, riveting, screw fastening sheet aluminium layout and template work, wing sections, cowling welding, sub-assembly, final assembly and inspection300
cMaintenance and repair (bangars)300
4Assemble Shops
aRough work, for example, frame assembly and assembly of heavy machinery150
bMedium work, for example, machine parts, engine assembly, vehicle body assembly300
cFine work, for example, radio and telephone equipment, typewriter and office machinery assembly700
dVery fine work, for example, assembly of very small precision mechanisms and instrument1500
5Boiler House (Industrial)
aCoal and ash handling100
bBoiler rooms
1) Boiler fronts and operating areas100+
2) Other areas20 to 50
cOurdoor plants
1) Cat-walks20
2) Platforms50
6Breweries and Distrilleries
aGeneral working areas150
bBrewhouse, bottling and canning plants200
cBottle inspectionSpecial
Lighting
7Chemical Works
aHand furnaces, boiling tanks stationery driers, stationery or gravity crystallizers, mechanical driers, evaporators, filtration plants, mechanical crystallizing, bleaching, extractors, percolators nitrators and electrolytic cells150
bControls, guages, valves, etc100
cControl rooms
1) Vertical control panels200 to 300
2) Control desks300
8Chocolate and Confectionery Factories
aMixing , blending and boiling150
bChocolate husking, winnowing, fat extraction, crushing and refining, feeding, bean cleaning, sorting, milling and cream making200
cHand decorating, inspection wrapping and packing300
9GLASS WORKS AND PROCESSES
aFurnace rooms, bending, annealing lehrs100
bMixing rooms, forming (blowing, drawing, pressing and rolling)150
cCutting to size, grinding, polishing and roughening200
dFinishing (bevelling, decorating, etching and silvering)300
eBrilliant cutting700
fInspection:
1) General200
2) Fine700
10INSPECTION SHOPS (ENGINEERING)
aRough work, for example, counting and rough checking of stock parts, etc.150
bMedium work, for example, 'go' and 'no go' gauges and sub-assemblies300
cFine work, for example, radio and telecommunication equipment, calibrated scales, precision mechanisms and instruments700
dVery fine work, for example, gauging and inspection of small intricate parts1500
eMinute work, for example, very small instruments 3000*
Iron and Steel Works
aMarshalling and outdoor stockyards10 to 20
bStairs, gangways, basements, quarries and loading docks100
cSlabyards, melting shops, ingot strippling, soaking pits, blast-furnace working areas picking and cleaning lines, mechanial plant and pump houses100
dMould preparation, rolling and wire mills, mill motor rooms, power and blower houses150
eSlab inspection and conditioning cold strip mills, sheet and plate finishing, tinning, galvanizing, machine and roll shops200
fPlate inspection300
gTinplate inspectionSpecial
Lighting
11Laboratories and Test Rooms
aGeneral laboratories and balance rooms300
bElectrical and instrument laboratories 450
Lundries and Drycleaning Works
aReceiving, sorting, washing, drying, ironing (calendering) and despatch200
bDrycleaning and bulk machine work200
cFine hand ironing, pressing, inspection, mending and spotting300
Leather Dressing
aVats, cleaning, tanning, stretching cutting, fleshing and stuffing150
bFinishing, staking, splitting and scarfing200
12MACHINE AND FITTING SHOPS
aRough bench and machine work150
bMedium bench and machine work, ordinary automatic machines, rough grinding, medium buffing and polishing300
cFine bench and machine work, fine automatic machines, medium grinding, fine buffing and polishing700
13MOTOR VEHICLE PLANTS
aGeneral sub-assemblies, chassis assembly and car assembly300
bFinal inspection450
cTrim shops, body sub-assemblies and body assembly300
dSprey booths450
Paint Works
aGeneral, automatic processes200
bSpecial batch mixing450
cColour matching700*
Paint Shops and Spraying Booths
aDipping, firing and rough spraying150
bRubbing, ordinary painting, spraying and finishing300
cFine painting, spraying and finishing450
dretouching and matching700*
14PAPERS WORKS
aPaper and board making :
1) Machine houses, calendering, pulp mills, preparation plants, cutting, finishing and trimming200
2) Inspection and sorting (over hauling)300
bPaper converting processes :
1) Corrugated board, cartons, containers and paper sack manufacturer, coating and laminated processes300
2) Associated printing300
15PHARMACEUTICALS AND FINE CHEMICAL WORKS
aRaw material storage200
bControl laboratories and testing300
cPharmaceuticals manfuacturing :
1) Grinding, granulating, mixing and drying, tableting, sterilizing and washing, preparation of solutions and filling, labelling, capping, cartoning and wrapping and inspection300
dFine chemical manufacture :
1) Plant processing200
2) Fine chemical finishing300
16PLASTIC WORKS
aManufacture (see Chemical Works)
bProcessing :
1) calendering and extrusion300
2) Moulding- compression and injection200
3) Sheet fabrication :
I) Shaping200
II) Trimming, machining, polishing300
iii) Cementing200
17ELECTROPLATING SHOPS
avat and baths, buffing, polishing and burnishing150
bFinal buffing and polishingSpecial
Lighting
Pottery and Clay Products
aGrinding, filter pressing, kiln rooms, moulding, pressing, cleaning, trimming, glazing and firing150
bEnamelling, colouring, decorating450
18SHEET METAL WORKS
aBench work, scribing, pressing, punching, shearing, stamping, spinning and folding 200
bSheet inspectionSpecial
Lighting
19TEXTILE MILLS (COTTON OR LINEN)
aBale breaking, blowing, carding, roving, slubbing, spinning (ordinary counts), winding, heckling, spreading and cabling150
bWarping, slashing, dressing and dyeing, doubling (fancy) and spinning (fine counts)200
cHealding (drawing-in)700
dweaving :
1) Patterned cloths and fine counts, dark700
2) Patterned cloths and fine counts, light300
3) Plain grey cloth200
eCloth inspection700
20TEXTILE MILLS (SILK OR SYNTHETICS)
aSoaking, fugitive tinting, conditioning or setting or twist.200
bSpinning450
cWinding, twisting, rewinding and coining, quilting and slashing :
1) Light thread200
2) Dark thread300
dWarping300
eHealding (drawing-in)700
fWeaving700
gInspection1000
21TEXTILE MILLS (WOOLEN)
aScouring, carbonizing, teasing, preparing, raising, brushing, pressing, back-washing, gilling, crabbing and blowing150
bBlending, carding, combing (white), tentering, drying and cropping200
cSpinning, roving, winding, warping, combing (coloured) twisting450
dHealding (drawing-in)700
eWeaving :
1) Fine worsted700
2) Medium worsteds and fine woollens450
3) Heavy woollens300
fBurling and mending700
gPerching :
1) Grey700
2) Final2000
22WAREHOUSES AND BULK STORES
aLarge material loading bays100
bSmall material racks150
cPacking and dispatch150
23Commercial buildings
aOffices
General Offices300
Deep Plan General Offices500
Computer Works Station300
Conference Rooms, Executive Offices300
Computer and Data Preparation Rooms300
Filing Rooms200
bDrawing Offices
General300
Drawing Boards500
Print Rooms200
Counter,Office Area300
Public Area200
cRetailing
Small Shops with counters300
Small Self Service Shops with Island Displays300
Super Markets – Hyper-Markets300
General300
Checkout300
Showrooms for large objects, for example, cars, furniture300
Shopping precincts and arcades100
dHospitals
Anesthetic Rooms
General200
Local750
Consulting Area
General200
Examination750
Corridors
General100
Ward Corridors
Day, Screened from Bays150
Day, open to nature light150
Cubicles
General200
Treatment750
Examinations
General200
Local Inspection750
Intensive Therapy
Bed Head30
Circulation Between Bed ends50
Observation200
Local Observation750
Staff base (day)200
Staff base (Night)30
Laboratories
General200
Examination300
Nurses ‘s stations
Morning/Day/evening200
Night desks30
Night, Medical Trolleys50
Operating Theatres
General300
Local10000
eHotels
Entrance Halls50
Receptions, Cashiers & Porter’s desks200
Bars, Coffee base, dining rooms, Grill rooms, Restaurants, Lounges50
Cloak Rooms, Baggage Rooms50
Bed Room30
Bath Rooms100
Food Preparation & Stores, cellars, Lifts and corridors100
fTransport
Air ports150
Ticket Counters, Checking, desks and information desks300
Departure Lounges, other waiting Areas150
Baggage reclaim150
Baggage Handling50
Customers & Immigration halls300
Concourse150
gRailway Stations
Ticket Office300
Information Office300
General50
Counter150
Waiting Rooms150
Concourse150
Time Table150
Ticket Barriers150
Platforms (Covered)30
Platforms (Open)20

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