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Class 7120 - Technical testing and analysis

PSIC Class 7120 covers Technical testing and analysis. Current child subclasses include Technical Testing and Analysis. This four-digit layer is useful when comparing neighboring activities before landing on the...

Level Class
Hierarchy depth 4/5
Children 1
Last verified 2026-05-12
About this level

Practical summary

Class 7120 sits in the PSIC 2019 hierarchy under M Professional, Scientific and Technical Activities > 71 Architectural and Engineering Activities; Technical Testing and Analysis > 712 Technical testing and analysis. This class usually fans out into more specific subclasses such as Technical Testing and Analysis. It is the level people use when they already know the activity family but still need the exact five-digit match.

Administrative context

Where this code is used

This class is used when a business can already narrow the activity family and only needs to compare the final subclasses such as Technical Testing and Analysis. It is the level most often checked before a five-digit decision is finalized.

Selection note

How to choose it

Use this class to choose between its final subclasses such as Technical Testing and Analysis. If two options look close, compare the exact activity, the outputs and the way the business actually earns revenue.

Official note

Source-backed description

This class includes the performance of physical, chemical and other analytical testing of all types of materials and products, including: acoustics and vibration testing testing of composition and purity of minerals etc.; testing activities in the field of food hygiene, including veterinary testing and control in relation to food production; testing of physical characteristics and performance of materials, such as strength, thickness, durability, radioactivity, etc.; qualification and reliability testing; performance testing of complete machinery: motors, automobiles, electronic equipment, etc.; radiographic testing of welds and joints; failure analysis; testing and measuring of environmental indicators: air and water pollution, etc.; Certification of products, including consumer goods, motor vehicles, aircraft, pressurized containers, nuclear plants, etc. Periodic road-safety testing of motor vehicles Testing with use of models or mock-ups (e.g. of aircraft, ships, dams, etc) Operation of police laboratories This class excludes: Testing of animal specimens, see 7500; Medical laboratory testing, see 862.

FAQ

What does PSIC Class 7120 cover?

PSIC Class 7120 is the four-digit layer that sits just above the final subclasses and usually defines the activity family for Technical testing and analysis.

How do I compare Class 7120 with the sibling classes?

Read the neighboring classes and compare the exact wording of the child subclasses. Nearby options include nearby sibling codes.

Why does Class 7120 matter for a filing decision?

It is usually the last broad checkpoint before the five-digit subclass choice, so it is the right place to catch near-miss classifications.