Test fluids to identify contamination or other problems.

Test fluids to identify contamination or other problems. is a detailed work activity in O*NET — a concrete unit of work shared across 7 occupations and seen in 7 occupation-specific tasks. It rolls up into the broader work activity Test characteristics of materials or products. in Inspecting Equipment, Structures, or Materials .

Detailed work activities are the most granular shared layer in O*NET's work-activity hierarchy (Generalized → Intermediate → Detailed → occupation-specific task). The figures below describe how this activity shows up across the economy and what independent studies measure about AI and this kind of work — not a prediction that the work will be automated.

AI exposure

Of the 7 tasks under this activity that the OpenAI / Eloundou “GPTs are GPTs” study rated, 0 (0%) are flagged as directly exposed to language models (E1) or exposed via model-powered tools (E2).

The Anthropic Economic Index observes real AI use on 2 of these tasks, with a mean mapped-usage share of 0.004% per task.

Exposure estimates overlap with model capabilities — whether a model could speed the task up — not whether the work will be done by software. Observed AI use is augmentation and assistance today, not jobs replaced.

Member tasks

Occupation-specific tasks O*NET maps to this detailed work activity, most important first.

• Perform tests of water chemistry in boilers. · Biomass Plant Technicians · importance 4.6 · no direct exposure
• Obtain fuel and oil samples and check them for contamination. · Aircraft Mechanics and Service Technicians · importance 3.9 · no direct exposure
• Test oil in circuit breakers and transformers for dielectric strength, refilling oil periodically. · Electrical and Electronics Repairers, Powerhouse, Substation, and Relay · importance 3.9 · no direct exposure
• Identify and quantify drugs or poisons found in biological fluids or tissues, in foods, or at crime scenes. · Forensic Science Technicians · importance 3.7 · no direct exposure
• Test water sources for factors, such as flow volume and contaminant presence. · Geothermal Technicians · importance 3.6 · no direct exposure
• Perform laboratory tests on samples collected, such as analyzing the content of contaminated wastewater. · Environmental Compliance Inspectors · importance 3.6 · no direct exposure
• Measure, mix, prepare, and test chemical solutions used to clean or repair machinery and equipment. · Maintenance Workers, Machinery · importance 3.4 · no direct exposure

Occupations that perform this

• Biomass Plant Technicians
• Electrical and Electronics Repairers, Powerhouse, Substation, and Relay
• Aircraft Mechanics and Service Technicians
• Forensic Science Technicians
• Geothermal Technicians
• Environmental Compliance Inspectors
• Maintenance Workers, Machinery

Sources for this page

Every figure above traces to a named public dataset and the exact release below — not hand-written opinion. See the full methodology for what each measure does and does not mean.

• O*NET 30.3 U.S. Department of Labor / National Center for O*NET Development
• Anthropic Economic Index v4 (2026-01-15) + v2 (2025-03-27) Anthropic
• “GPTs are GPTs” (Eloundou et al.) arXiv 2303.10130 OpenAI / academic

Data compiled June 2, 2026. Figures are estimates, not advice.

@misc{singulariki-test-fluids-to-identify-contamination-or-other-problems,
  title  = {Test fluids to identify contamination or other problems.},
  author = {{Singulariki}},
  year   = {2026},
  note   = {O*NET 30.3; Anthropic Economic Index v4 (2026-01-15) + v2 (2025-03-27); “GPTs are GPTs” (Eloundou et al.) arXiv 2303.10130. Accessed June 7, 2026},
  url    = {https://singulariki.com/detailed-activities/test-fluids-to-identify-contamination-or-other-problems}
}