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properties /measurement

property token a chosen word

how it is opened

also called cap type · release

WHETHER THE CAP CARRIES A LEVER THAT VENTS THE SYSTEM BEFORE IT CAN BE TURNED OFF, or must simply be left to cool. Motorad publishes it as a named field on its own site and prints two values - `Type: Standard` on the T16, T16R and T20R against `Type: Safety Lever` on the ST16 - with two confirming fields beside it, `Lever Type: Yes/No` and `Quick Pressure Release: Yes/No`. Stant states the same distinction in prose on the 10231 (`Vented design`, the Lev-R-Vent lever). IT IS A SAFETY FACT AND THE ONLY ONE IN THIS BATCH: a hot cooling system will throw boiling coolant at whoever opens a standard cap, and the lever exists to stop that, so a shelf that cannot say which it is selling is failing the buyer rather than merely under-describing the part. Concern measurement.

How it is opened is answered with one word chosen from the cap release types list — the same word shared across every product that uses it.

It belongs to measurement — its measurable, physical facts.

asked by the kinds that answer it

1 kind answers it, each for a single value. The same question can be reused by unrelated kinds — one meaning, many homes.

answered with
token — a token — a word chosen from a fixed vocabulary, shared and filterable across products.
value domain
Cap release types — the vocabulary its answers are drawn from.
concern
Measurement — the facet of a product it belongs to.

asked by kinds that answer it

The same question can be reused by unrelated kinds — one meaning, many homes.

kindhow many
pressure cap one