Document ID: chunk:federal_register_of_legislation:F2016L00409:body:0:p36
Version: federal_register_of_legislation:F2016L00409
Segment Type: other
Provision Reference: 
Character Range: 92230–95222

a rigorous cleaning process and that any instructions for cleaning are followed. Containers which have held any of the following materials are considered unsafe and hot work should not be started before they are properly cleaned:
    * petrol, kerosene, solvents, or light oils
    * acids and alkalines, which can react with metal to produce explosive or toxic gases
    * heavy oils, tars or solids which can release combustible gases when exposed to heat, and
    * flammable solids, whose finely divided particles may form an explosive dust cloud.
Any container which has held flammable or combustible substances should be considered unsafe until confirmed otherwise by a competent person.
Further guidance on safety precautions that can be taken when welding is available in the
Code of Practice: Welding processes.

APPENDIX A – DEFINITIONS
Asbestos means the asbestiform varieties of mineral silicates belonging to the serpentine or amphibole groups of rock forming minerals including actinolite asbestos, grunerite (or amosite) asbestos (brown), anthophyllite asbestos, chrysotile asbestos (white), crocidolite asbestos (blue), and tremolite asbestos.
Asbestos containing material (ACM) means any material or thing that contains asbestos.
Bearer means the primary horizontal support members for a formwork deck that are placed
on top of formwork frames. Bearers are usually constructed from timber but are sometimes constructed from metal, such as in the case of some modular formwork systems.
Brace means a member, usually a diagonal, which resists lateral loads and/or movements
of a structure.
Chute means an inclined or vertical trough or tube through which articles are passed from
a higher to a lower level.
Competent person means a person who has acquired through training, qualification or experience the knowledge and skills to carry out the task
Dead load means a permanent inert load on a building or other structure due to the weight
of its structural members and the fixed loads they carry, which impose definite stresses and strains upon the structure.
Debris means material created by demolition work that is larger than rubble.
Demolition drop zone means a zone for the disposal of demolition rubble and debris, which
is clear of obstruction and isolated from workers and other persons at the workplace, to allow objects to fall freely.
Earthmoving machinery means an operator controlled plant used to excavate, load, transport, compact or spread earth, overburden, rubble, spoil, aggregate or similar material,
but does not include a tractor or industrial lift truck.
Essential services means services that supply:
   (a)              gas, water, sewerage, telecommunications, electricity and similar services, and
   (b)              chemicals, fuel and refrigerant in pipes or lines.
Exclusion zone means an area from which all persons are excluded during demolition work.
Footing means the construction that transfers the weight of the structure to the foundation.