Part · discovery

Chemical test passive dispersive viewing channel set

Natural clear mineral prism and apertures selecting two spectral fields with manually adjusted channel ratio comparison; spectral/temperature calibration unqualified; construction hypothesis only, actual chemistry/temperature/duty, amounts and suitability unknown.

Discovered · unresearchedClosure: OpenInventory incomplete

Capability requirements and tolerances

Consumer-specific numerical targets, quantities and acceptance limits remain open or incompletely reviewed. No smartphone-grade suitability is claimed. Distinct capability tiers require their own making route and qualification.

Making steps · draft selected for navigation; not a validated fabrication specification.

Known Parts and Tools

The selected route supplies this page's inventory and the map's dependency links from one record. Further requirements may be missing; review flags do not prove physical suitability.

Requirement	Role	Use	Relationship status
Chemical test raw clear mineral optical feed	Part	incorporated and consumed trial/wear allocation	Cycle-checked; compatibility unknown
Abrasive stones	Tool	reused making/operation	Cycle-checked; compatibility unknown
Collected process water	Part	incorporated and consumed trial/wear allocation	Cycle-checked; compatibility unknown
Clay pottery	Tool	reused making/operation	Cycle-checked; compatibility unknown
Collected wood	Part	incorporated and consumed trial/wear allocation	Cycle-checked; compatibility unknown
Collected tool stone	Part	incorporated and consumed trial/wear allocation	Cycle-checked; compatibility unknown
Fiber cord	Part	incorporated and consumed trial/wear allocation	Cycle-checked; compatibility unknown
Stone hand tools	Tool	reused making/operation	Cycle-checked; compatibility unknown
Coarse comparison reference	Tool	verification	Cycle-checked; compatibility unknown

Making outline

Select natural optically clear crystal feed, hand grind two broad prism faces against loose abrasive stone and water on a cold supported lap, retain dry aperture/channel stops in a wood/mineral holder and compare visible spectral fields against an independent radiance reference later
Detailed procedure and acceptance remain unresearched.

What remains unresolved

Manufacture, quantities, suitability and complete inventory remain unreviewed.
Current memory-first method needs source and compatibility review.

Canonical reuse assessment

{
  "checked": [
    "optical-metrology",
    "two-color-optical-temperature-head"
  ],
  "decision": "Different physical function or material state from checked records; no built stock or acceptance asserted."
}

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Used by

Items that directly require this item in their selected inventory.

Passive two-color temperature head

Paths from Smartphone

These routes together include every item that can lead from Smartphone to this item. Repeated path combinations are collapsed; recipes are omitted.

Shortest route: Smartphone → Covers → Temperature instruments → Passive two-color temperature head → Chemical test passive dispersive viewing channel set

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