What is friable and non-friable asbestos?

What is 'friable' asbestos?

Friable means when dry, or as the result of a work process, may be crumbled, pulverised or reduced to a powder by hand pressure.

What is 'non-friable' asbestos?

Non-friable means, when dry may not be crumbled, pulverised or reduced to powder by hand pressure (for example materials containing asbestos that have been mixed with cement or other hard bonding materials).