Retsch MM 400 - Manual (Page 22)

2/8/2012 22 Retsch GmbH
Safety instructions for handling liquid nitrogen
The MM 400 is also designed for cryogenic milling.
As an accessory for cold milling we also supply a cryo kit for
cooling the milling cups with liquid nitrogen.
Cryo kit order number: 22.354.0001.
When handling liquid nitrogen always wear protective
goggles and protective gloves.
Liquid nitrogen has a temperature of – 196°C and can cause
injury similar to burns or frostbite in contact with the skin
or eyes.
Protective goggles also protect the eyes against serious
injuries through flying glass splinters, which may be caused
through bursting of glass containers as a result of low
temperature tension.
Please follow the safety regulations of the cooling
liquid supplier.
Retsch GmbH excludes any liability claims whatsoever
which may arise through the use of liquid nitrogen or
similar materials.