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Safety

1-4

Part 1105120-01

E 2013 Nordson Corporation

Exposure to UV radiation can result in

S reddening of skin

S headaches

S sore eyes

X RAYS

ULTRA

VIOLET

INFRA RED MICROWAVES RADIO WAVES

VISIBLE

VACUUM UV

FAR

NEAR

UVC UVA

100 200 300 500 600 700 800 900400 1000 nanometers

Figure 1-2 Ultraviolet Light Wavelength Bands

It is very important that all precautions are taken to prevent all UV light,

whether direct or indirect, from escaping the curing area. Exposure to UV

light can be harmful to both eyes and skin. Use the following table to

determine the permissible exposure time to UV light on unprotected eyes or

skin.

Permissible Ultra Violet Exposures as Recommended by the

American Conference of Government and Industrial Hygienists

Duration of Exposure (Per Day) Effective Irradiance (E Micro

Watts/cm sq)

8 hours 0.1

4 hours 0.2

2 hours 0.4

1 hour 0.8

30 minutes 1.7

15 minutes 3.3

10 minutes 5.0

5 minutes 10

1 minute 50

30 seconds 100

10 seconds 300

1 second 3000

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Sharp R-610D Handbuch Seite 10