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Checking Adequacy of Lighting in a Room

There are no published guidelines on the adequacy of lighting and how to check for light adequacy without instruments. However, the Illuminating Engineer Society (IES) has recommended that for casual reading an illumination level of 100 lux is sufficient. Also the Government of India recommends up to 100 lux of illumination in living rooms.
Hence, it seems practical that if one is able to read news print in all the corners and the center of the room and also in the darkest portion of the room, the lighting can be considered adequate, provided there is no glare and the light does not directly fall in the eyes.

• Poornima Tiwari, Shashank Tiwari. Chapter 13, In: Mastering Practicals in Community Medicine. 2nd ed. Lippincott Williams & Wilkins, New Delhi
• Park K. Medicine in social sciences. In: Park’s Textbook of Preventive and Social Medicine, 24th ed. Jabalpur, India: M/S Banarasidas Bhanot Publishers; 2017.
• Veitch JA. Psychological processes influencing lighting quality. J Illum Engng Soc 2001;30(1): 124- 140
• GOI. National Building Code, Part 8, Section 1: Lighting and Ventilation. New Delhi: BIS; 2005.

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Prasad's Scale:
Dependency Ratio:
Assessment of Overcrowding in a Household:
Checking Adequacy of Lighting in a Room:
Assessment of Adequacy of Ventilation:
Family and the Types of Family:
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Housefly Breeding Sites:
Life Cycle of Housefly:
Types of Piped Water supply:
Reference Indian Adult Man and Woman:
Concept of the “Consumption Unit”:
Methods of Dietary Survey:
24-Hour Recall (Questionnaire) Method:
Determination of Socio-economic Status of a Family in a Rural Area (the Uday Pareekh Scale):
7 Terms used in Maternal and Child Health: Definition and Explanation:
Terms used in Family Health Study: Definitions and Explanations:

Hindi lecture on CSC taking:
English lecture on CSC taking:
Format for CSC taking:
Geriatric CSC taking: