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Supporting authority
Analytical method or chemistry authority
Chemical Metrology
National Institute of Standards and Technology
This is not a biological evidence record. It can govern a measurement, regulation, professional practice, maintained reference or named product instruction. It cannot silently become a Neocaridina experiment or animal-outcome threshold.
Permitted use
Measurement validation, matrix, traceability and uncertainty principles.
Boundary
General metrology principles do not validate a specific aquarium result or assign biological meaning.
- Role
- Analytical method or chemistry authority
- Reviewed
- 2026-08-12
- Linked guides
- 1
Where this authority is used
Correct or refine this boundary
Submit a stable replacement, update or narrower interpretation. A changed authority does not automatically change a biological conclusion; affected guide claims still receive editorial review.