ACID

Substance which when concentrated will burn the skin. Neutralises and the opposite to alkali. Examples include battery acid, sulphuric acid and hydrochloric acid.

ALKALI

Substance which when concentrated will burn the skin. Neutralises and the opposite to acid. Examples include, caustic soda and potash.

AS

Australian Standard followed by a number which denotes a particular publication.

ANGLE FACTOR

The factor by which the WLL of a multi-legged sling is de-rated to give its SWL at a particular angle between the sling legs.

ANTI-TWO-BLOCK DEVICE

See hoist-limiting device.