Chemical plant machine operators (NOC 9421)

Note: The codes in brackets and under the Aptitudes heading are for career development specialists. Under the Interests heading, the code is in upper or lower case letters depending on the degree of importance.


Objective (O)

Objective persons enjoy working with tools, equipment, instruments and machinery. They like to repair and/or fabricate things from various materials according to specifications and using established techniques. Objective persons are interested in finding out how things operate and how they are built.

Methodical (M)

Methodical persons like to have clear rules and organized methods to guide their activities. They prefer working under the direction or supervision of others according to given instructions, or to be guided by established policies and procedures. Methodical persons like to work on one thing until it is completed. They enjoy following a set routine and prefer work that is free from the unexpected.

Directive (i)

Innovative persons like to explore things in depth and arrive at solutions to problems by experimenting. They are interested in initiating and creating different ways to solve questions and present information. They enjoy scientific subjects. Innovative persons prefer to be challenged with new and unexpected experiences. They adjust to change easily.

Physical activities

Near vision (V2)

Work activities are performed near the worker. The scope of the visual field is broader than in Close visual acuity (1).

Relevant (C1)

Colour discrimination is relevant in the performance of the work.

Limited (H1)

Hearing is limited to short and/or infrequent verbal interactions in order to perform the work.

Standing and/or walking (B2)

Work activities primarily involve standing or walking.

Upper limb co-ordination (L1)

Work activities involve co-ordination of upper limbs.

Light (S2)

Work activities involve handling loads of 5 kg but less than 10 kg.


3 4 4 4 4 4 3 4 3

Data, people, things

Copying (D5)

Carrying out a set of explicit procedural/operational functions or processes based on an understanding of instructions or information necessary to perform the work.*

Not significant (P8)

Not significant

Operating - Manipulating (C4)

Using the body, tools or special devices to operate equipment or move, guide, install and place objects or materials. Requires a significant combination of motor co ordination and manual and finger dexterity. Involves some latitude for judgment with regard to precision and selection of appropriate tool, object or material.

Environmental conditions

Regulated inside climate (L1)

A normal controlled environment such as an office, hospital or school.

Dangerous chemical substances (H1)

Exposure to any chemical that may endanger health through inhalation, absorption or ingestion, contact with skin or eyes, or any chemical with the potential for fire or explosion. Substances may be in forms such as solids, liquids, gases, aerosols or particles.

Equipment, machinery, tools (H3)

Working near or with equipment, instruments, machinery or power/hand tools that may be a potential source of accident or injury.

Noise (D1)

Work that produces sufficient noise - constant or intermittent - to cause marked distraction or possible loss of hearing.

Odours (D3)

The presence of noxious, intense or prolonged odours in the work environment.


Personal protective equipment may be required when working with some types of chemicals or pharmaceuticals.