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9421.0 – Chemical plant machine operators
Chemical plant machine operators monitor and operate units and machinery to blend, mix, process and package a wide range of specialty chemicals, pharmaceuticals, cleaning and toiletry products.
Profile
Example titles Help
- Batch mixer - chemical processing
- Blender - chemical processing
- Capsule machine operator
- Evaporator operator - chemical processing
- Formulations blender operator
- Glue blender
- Granulator machine operator
- Mixer - chemical processing
- Screener - chemical processing
- Soap maker
Main characteristics Help
- General learning ability to monitor meters, gauges and electronic instruments on one or more chemical or formulation units such as mixers, kettles, blenders, driers and tabletting, encapsulation, granulation and coating machines
- Motor co-ordination and Manual dexterity to adjust processing machines and equipment
- Objective interest in operating to start up, shut down and clean equipment; may operate equipment from control rooms or control consoles located near production units
- Methodical interest in copying to record production data, and to measure, weigh and load chemical ingredients following formulation cards; and in monitoring reaction processes and transfers of products in conformance with safety procedures
- Innovative interest in troubleshooting equipment, and in taking samples to perform routine chemical and physical tests of products
Aptitudes Help
One of five levels assigned for each factor, with levels representing normal curve distribution of the labour force:
- G
- General learning ability
- V
- Verbal ability
- N
- Numerical ability
- S
- Spatial perception
- P
- Form perception
- Q
- Clerical perception
- K
- Motor co-ordination
- F
- Finger dexterity
- M
- Manual dexterity

- The highest 10% of the working population
- Upper third, exclusive of the highest 10%
- Middle third of the working population
- Lowest third, exclusive of the lowest 10%
- Lowest 10% of the working population
An individual's overall capacity to learn the skills needed to perform job duties is based on his or her specific aptitudes for acquiring information and transforming it into action.
General learning ability G-3
Ability to 'catch on' or understand instructions and underlying principles; to reason and make judgments.
Verbal ability V-4
Ability to understand the meaning of words and the ideas associated with them, and to use them effectively; to comprehend language, to understand relationships between words and to understand the meaning of whole sentences and paragraphs; to present information or ideas clearly.
Numerical ability N-4
Ability to carry out arithmetical processes quickly and accurately.
Spatial perception S-4
Ability to think visually about geometric forms and comprehend the two dimensional representation of three dimensional objects; to recognize the relationships resulting from the movement of objects in space. May be used in such tasks as blueprint reading and in solving geometry problems. Frequently described as the ability to 'visualize' objects of two or three dimensions.
Form perception P-4
Ability to perceive pertinent detail in objects and in pictorial and graphic material; to make visual comparisons and discriminations and to see slight differences in shapes and shadings of figures and widths and lengths of lines.
Clerical perception Q-4
Ability to perceive pertinent detail in verbal or tabular material; to observe differences in copy, to proofread words and numbers, and to avoid perceptual errors in arithmetical computation.
Motor co-ordination K-3
Ability to co-ordinate eyes, hands and fingers rapidly and accurately when required to respond with precise movements.
Finger dexterity F-4
Ability to move the fingers and manipulate small objects with the fingers rapidly and/or accurately.
Manual dexterity M-3
Ability to move the hands easily and skillfully; to work with the hands in placing and turning motions.
Interests Help
Three of five descriptive factors, assigned in order of predominance and lower case rating indicating weaker representation:
- D
- Directive
- I
- Innovative
- M
- Methodical
- O
- Objective
- S
- Social
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.
Innovative 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.
Data, people, and things Help
Data
- 0
- Synthesizing
- 1
- Co-ordinating
- 2
- Analyzing
- 3
- Compiling
- 4
- Computing
- 5
- Copying
- 6
- Comparing
- 7
- N/A
- 8
- Not Significant
People
- 0
- Mentoring
- 1
- Negotiating
- 2
- Instructing - Consulting
- 3
- Supervising
- 4
- Diverting
- 5
- Persuading
- 6
- Speaking - Signaling
- 7
- Serving - Assisting
- 8
- Not significant
Things
- 0
- Setting up
- 1
- Precision working
- 2
- Controlling
- 3
- Driving - Operating
- 4
- Operating - Manipulating
- 5
- Tending
- 6
- Feeding - Offbearing
- 7
- Handling
- 8
- Not significant
Data Copying 5
Carrying out a set of explicit procedural/operational functions or processes based on an understanding of instructions or information necessary to perform the work.*
People Not significant 8
Not significant
Things Operating 4
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.
Physical activities Help
V - Vision
- 1
- Close visual acuity
- 2
- Near vision
- 3
- Near and far vision
- 4
- Total visual field
H - Hearing
- 1
- Limited
- 2
- Verbal interaction
- 3
- Other sound discrimination
L - Limb co-ordination
- 0
- Not relevant
- 1
- Upper limb co-ordination
- 2
- Multiple limb co-ordination
C - Colour discrimination
- 0
- Not relevant
- 1
- Relevant
B - Body position
- 1
- Sitting
- 2
- Standing and/or walking
- 3
- Sitting, standing, walking
- 4
- Other body positions
S - Strength
- 1
- Limited
- 2
- Light
- 3
- Medium
- 4
- Heavy
Vision Vision V-2
The use of sight in the work performed. The levels are organized in terms of the visual field involved in the performance of the work.
2 - Near vision
Work activities are performed near the worker. The scope of the visual field is broader than in Close visual acuity (1).
Examples:
- reading and interpreting drawings and specifications
- using computer keyboards and reading computer monitors
- repairing automobile engines
- setting up and operating machine tools
Colour discrimination Colour discrimination C-1
The use of colour descrimination to identify, distinguish and match colours and different shades of the same colours.
1 - Relevant
Colour discrimination is relevant in the performance of the work.
Examples:
- observing signals while operating vehicles
- installing, testing and repairing electrical wiring
- restoring and conserving museum and art gallery artifacts
- designing, constructing and repairing dentures
Hearing Hearing H-1
The use of hearing in the work performed. The levels are organized in terms of the type of auditory discrimination involved in the performance of the work.
1 - Limited
Hearing is limited to short and/or infrequent verbal interactions in order to perform the work.
Examples:
- typing and proofreading correspondence
- cutting and trimming meat, poultry and fish according to customers' orders
- carrying linen to and from laundry areas and running errands
- assisting mine workers in constructing underground installations
Body position Body position B-2
Primary type of posture or body movement involved in performing the work. These postures or body movements range from simple to complex and from sedentary to mobile.
2 - Standing and/or walking
Work activities primarily involve standing or walking.
Examples:
- cutting and styling hair
- dispensing prescribed medications to customers
- preparing and cooking meals
- delivering mail
Limb co-ordination Limb co-ordination L-1
The use of limbs in performing work.
1 - Upper limb co-ordination
Work activities involve co-ordination of upper limbs.
Examples:
- keyboarding
- performing maintenance services such as oil changes, lubrications and tune-ups
- operating video cameras
- instructing students in sign language
Strength Strength S-2
The use of strength in the handling of loads such as pulling, pushing, lifting and/or moving objects during the work performed.
2 - Light
Work activities involve handling loads of 5 kg but less than 10 kg.
Examples:
- repairing soles, heels and other parts of footwear
- filing materials in drawers, cabinets and storage boxes
- preparing and cooking meals
- repairing paintings and artifacts
Environmental conditions Help
Location
- L1
- Regulated inside climate
- L2
- Unregulated inside climate
- L3
- Outside
- L4
- In a vehicle or cab
Hazards
- H1
- Dangerous chemical substances
- H2
- Biological agents
- H3
- Equipment, machinery, tools
- H4
- Electricity
- H5
- Radiation
- H6
- Flying particles, falling objects
- H7
- Fire, steam, hot surfaces
- H8
- Dangerous locations
Discomforts
- D1
- Noise
- D2
- Vibration
- D3
- Odours
- D4
- Non-toxic dusts
- D5
- Wetness
Discomforts Noise D1
Work conditions that create disturbances but are not hazardous. In general, these conditions create discomfort, but are not direct sources of injury. In extreme instances, however, these conditions might cause injury.
D1 - Noise
Work that produces sufficient noise – constant or intermittent – to cause marked distraction or possible loss of hearing.
Examples:
- operating drilling equipment in underground mines
- using power saws in logging operations
- blasting rock surface in mining
- operating heavy equipment for construction jobs
- using firearms
Discomforts Odours D3
Work conditions that create disturbances but are not hazardous. In general, these conditions create discomfort, but are not direct sources of injury. In extreme instances, however, these conditions might cause injury.
D3 - Odours
The presence of noxious, intense or prolonged odours in the work environment.
Examples:
- cooking meals
- colouring, waving and styling hair
- preserving and sanitizing human remains
- using industrial cleaning solutions
- preparing standard cuts of meat, poultry and fish products for sale
Hazards Dangerous chemical substances H1
Potential hazards to which the worker may be exposed. The codes provide an indication of the type(s) of hazard(s) most likely to be present in the workplace environment. They are not a measure of frequency, duration or degree of exposure to hazards, but an indication of the presence or absence of a particular hazard in the work environment.
H1 - Dangerous chemical substances
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.
Examples:
- extracting coal (involves exposure to silica particles)
- removing asbestos insulation from buildings
- joining bricks with mortar (contains lime)
- mixing pesticides to spray crops
- painting building interiors
Hazards Equipment, machinery, tools H3
Potential hazards to which the worker may be exposed. The codes provide an indication of the type(s) of hazard(s) most likely to be present in the workplace environment. They are not a measure of frequency, duration or degree of exposure to hazards, but an indication of the presence or absence of a particular hazard in the work environment.
H3 - Equipment, machinery, tools
Working near or with equipment, instruments, machinery or power/hand tools that may be a potential source of accident or injury.
Examples:
- operating metal machining tools to shape metal
- using hand tools to fabricate wood products
- operating power saws to thin trees
- performing surgical procedures
Location Regulated inside climate L1
The work performed is carried out indoors in a regulated environment, indoors in an unregulated environment, outdoors or in a vehicle. In many occupations, the Main Duties may be performed in more than one location. Therefore, a group may have more than one Location code, for example:
- firefighting and fire prevention duties
- maintenance of interior/exterior of buildings
- managing operations and paperwork of farms
L1 - Regulated inside climate
A normal controlled environment such as an office, hospital or school.
Employment requirements Help
Education/training Help
- 1
- No formal education or training requirements
- 2
- Some high school education and/or on the job training or experience
- 3
- High school
- 4
- Course work, training, workshops and/or experience related to the occupation
- 5
- Apprenticeship, specialized training, vocational school training
- 6
- College, technical school (certificate, diploma)
- 7
- Undergraduate degree
- 8
- Post-graduate or professional degree
- +
- Additional requirement beyond education and training
- R
- Regulated requirement(s)
- Completion of secondary school is usually required.
- Completion of several months to one year of informal, on-the-job training within the company is required for most mixer and blender operators.
- Completion of more than one year of formal and informal company training may be required for some operators working in pharmaceutical, explosives and agricultural chemical or in specialty chemical plants.
- Previous experience in chemical products processing as an assistant, labourer or helper may be required for some occupations in this group.
- Certification in the transportation of dangerous goods (TDG), first aid, firefighting or workplace hazardous materials information system (WHMIS) may be required for some occupations in this group.
Workplaces/employers Help
- Chemical, cleaning compound, ink and adhesives industries
- Chemical processing departments in industries
Occupational options Help
- Mobility between employers producing similar products is possible for some of the more skilled operators in this group.
- Progression to supervisory positions or to process control occupations is possible with experience.
Exclusions Help
Remarks Help
- Personal protective equipment may be required when working with some types of chemicals or pharmaceuticals.
Breakdown summary
- Broad occupational category
- 9 – Occupations in manufacturing and utilities
- Skill level
- C – Occupations usually require secondary school and/or occupation-specific training
- Minor group
- 94 – Processing and manufacturing machine operators and related production workers
- Minor group
- 942 – Machine operators and related workers in chemical, plastic and rubber processing
- Unit group
- 9421 – Chemical plant machine operators
- Version
- NOC 2016 Version 1.3