What are the typical foot-candles for office work and fine assembly?

The typical foot-candles for office work and fine assembly are best represented with the range of 50 to 500 foot-candles. This range is appropriate because it provides adequate lighting for tasks that require focus and detail, such as reading documents or assembling intricate components.

In office environments, a recommended level of around 50 foot-candles allows for general visibility and comfort, ensuring that employees can perform their tasks without straining their eyes. On the other hand, fine assembly often demands higher illumination levels, closer to 500 foot-candles, to facilitate precision work and minimize errors in a production setting.

Choosing this range recognizes the balance between ensuring enough light for productivity while also not introducing excessive brightness that could cause glare and visual fatigue. Consequently, this answer reflects the recognized standards in industrial hygiene and workplace safety practices.