Document ypNmJOK3xad2GQ3beg3q7qrD2

SAFETY ENGINEERING TABLES 43-17 Currently Recommended Illumination* Footcandles longed seeing such as conferring, interview ing, inactive files, and washrooms.............. 30 Comdors, elevators, escalators, stairways .. .. 20 (ornot less than % level In adja cent areas) PACKING AND BOX1NC (see MATERIALS HANDUNC) PAINT MANUFACTURING General............................................... Comparing mu and standard............................ 30 2001 PAINT SHOPS Dipping, simple spraying, firing...................... SO Rubbing, ordinary hanapainting and finishing art, stencil ana special spraying ,. Fine hand painting and finishing 50 100 Extra fine hand painting and mushing (auto mobile bodies piano cases, etc ) PAPER BOX MANUFACTURING 300*' General manufacturing area 50 PAPER MANUFACTURING Beaters, grinding, calendering 30 Finishing, cutting, trimming, paper-making ma chines ... 50 Hand counting, wet end of paper machine .. . 70 Paper machine reel, paper inspection and labo ratories ...................................... 100 Rewinder .... .................................. 150 Currently Recommended Illumination* Footcandles PLATING . POLISHING AND BURN1SHINC . . PRINTING INDUSTRIES Type foundries Matrix making, dressing type Font assembly--sorting .. Hand casting.................. Machine casting Printing plants Color inspection and appraisal Machine composition Composing room Presses . Imposing stones Proof reading Electrotvping Molding, finishing, leveling molds, routing. tnmimng Blocking, turning Electroplating, washing, backing Photoengraving Etching, staging Blocking .. . Routing, finishing, proofing Tint laying . . Masking 30 100 100 50 50 50 200* 100 100 70 150 150 100 50 50 50 50 100 100 100 Minimum on the tank at BUT tune "Obtained wtlb a combination of general lighting plot apeeinltied euppletnentorv lighting Core sboold be token to keep within the recommended bright ness ration There seems taels genernbf Involve the discrimination of fine detail for bag periods of tuns sad under conditione of poor contrast. Tbs design and installation of the combination sxstau mast provide not only a sufficient amsunt of light, bat also the proper direction of light, diffusion, and ere protection Ad fas ss possible, it should eliminate direct and redacted ginre as well as objectionable shadows tTho specular surface or tbs material mar necessitate special eonaldaratlan In sclection and placement of lighting equipment or orientation of the work tlSpecml lighting such that (11 the tumlaoas area bo largo enough to cover the surface which is being Inspected end (2) the brightness be within the limits necessary to obtain comfortable contrast conditions. This Involves the are at sources of large arm and vetoUvelx low brightness la which the soared brightness a toe principal factor rather than the footcandles prodneed at a given point.