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Elements and Performance Criteria

1. Relate schematic to plant
   • Match items on schematic with items in plant
   • Determine relevant pipe and flange schedules
   • Identify sizes and types of minor equipment
   • Locate relevant instrument tapping points and control points
   • Identify direction of flow on schematic and in plant
2. Identify points required to prepare plant
   • Locate isolation and blanking points for any item of the relevant schematic
   • Identify drain/vent/purge points for any item on the relevant schematic
   • Identify trip system elements
   • Use schematic to check/develop work lists
3. Describe the process with a schematic
   • Use a schematic as the basis of a description of the process
   • Describe the process using a manual schematic
   • Walk through process identifying all plant items in process order
   • Identify key conditions/variables from a relevant schematic

Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.
Regulatory framework	The latest version of all legislation, regulations, industry codes of practice and Australian/international standards, or the version specified by the local regulatory authority, must be used, and include one or more of the following: legislative requirements, including work health and safety (WHS) industry codes of practice and guidelines environmental regulations and guidelines Australian and other standards licence and certification requirements All operations to which this unit applies are subject to stringent health, safety and environment (HSE) requirements, which may be imposed through state/territory or federal legislation, and these must not be compromised at any time. Where there is an apparent conflict between performance criteria and HSE requirements, the HSE requirements take precedence.
Items	Items on schematic/in plant include the following: all major plant items, such as: vessels columns reactors heat exchangers minor plant items, such as: pumps valves strainers filters instrumentation (local and remote)
Schematics	Schematics are formally drawn, authorised diagrams and are hard copy or electronic. Schematics have various names, including: piping and instrumentation diagram (P&ID) process flow diagram (PFD) process engineering flow (PEF) cause and effect diagrams/matrix Manual schematic includes one or more of the following: a hand drawn sketch of the part of the process of interest a mark up of a formally drawn schematic
Symbols	Symbols and conventions used in the schematics for the relevant plant area should be used, and include of one or more of the following: Australian Standards symbols the organisation's standard symbols some other standard system
Points required to prepare plant	Points required to prepare plant include three or more of the following: isolations blank/spade/spectacle blind, breakout spool locations draining purging blanketing venting ventilating locating plant, equipment and services - above ground locating below ground (or otherwise obscured) pipeline and services
Key conditions/ variables	Key conditions/variables include one or more of the following: normal range of process conditions, such as: level pressure flow temperature alarm conditions/values trip and emergency shutdown (ESD) values

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Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria, and include the ability to:

interpret symbols and other drawing elements and explain their relationship to the plant and process

identify critical processes and plant items from a schematic

draw or mark up a schematic and use it to describe main process features and plant items.

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Knowledge Evidence

Evidence must be provided that demonstrates knowledge of:

standard/common symbols used on schematics

schematic conventions (e.g. with particular reference to crossing and branching lines)

symbols and conventions used by the organisation, if different from common usage

indications of equipment/pipe specifications

indications of process conditions/limits.

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