Spec Directories

Reference directories for spec sheet comparison.

SpecCore organizes units, canonical fields, component categories, industries, and comparison conditions so technical datasheets can be normalized without losing the original source value.

Unit families

Engineering-friendly canonical units for dimensions, pressure, force, torque, temperature, electrical values, frequency, power, flow, density, roughness, and percentage-based specs.

  • Length: mm, um, in, ft
  • Pressure and stress: MPa, kPa, bar, psi, Torr
  • Electrical: V, A, ohm, F, H, Hz, W
  • Flow: L/min, mL/min, GPM, sccm, slm, CFM

Canonical fields

Normalized field names that preserve raw labels while grouping equivalent specs into comparable rows.

  • Operating temperature
  • Supply voltage
  • Tensile strength
  • Flow rate
  • Package or material grade

Comparison conditions

Context that determines whether two values can safely be compared.

  • Temperature, pressure, load, airflow, and frequency
  • Material condition, process condition, and package variant
  • Minimum, maximum, nominal, typical, range, and tolerance value types
  • Standards, test methods, and source notes

Industries

Initial ontology coverage focuses on engineering data-heavy industries with inconsistent datasheet formats.

  • Semiconductor
  • Aerospace
  • Oil and gas
  • Water flow and industrial manufacturing

Component categories

Product families with measurable engineering specifications.

RF amplifiers and antennas
Sensors, IMUs, avionics, and electronics
Airframe structures, fasteners, composites, and materials
Valves, regulators, fittings, hoses, pumps, and thermal systems
Semiconductor devices, wafers, fab materials, packaging, and test equipment

Related comparison workflows