qualifier token a chosen word

speed basis

also called basis of the speed figure · which speed

WHICH OF THE TWO PUBLISHED SPEEDS A `speed_rating` FIGURE IS - the thermal reference speed of ISO 15312 or the mechanical limiting speed. A qualifier, not a flat property beside its host, for the b153 `filtration_rating`/`filtration_efficiency` reason: a bearing publishes both figures and a loose basis token could not say which number it belonged to. Concern measurement.

Speed basis is answered with one word chosen from the speed rating bases list — the same word shared across every product that uses it.

It is a qualifier of speed rating — it has meaning only inside a speed rating statement, never on its own. It belongs with speed rating to measurement — its measurable, physical facts.

It is answered inside every speed rating statement, not as a standalone question on a kind.

answered with: ◇token — a token — a word chosen from a fixed vocabulary, shared and filterable across products.
value domain: Speed rating bases — the vocabulary its answers are drawn from.
qualifier of: speed rating — required_one per statement — it has meaning only inside that host's statement.

Answered inside every speed rating statement — not a standalone slot on any kind.